"I am saddened beyond belief that my ex Steve is no longer with us. It is a terrible end," Hurley captioned the photos. "Our time together was very happy and I'm posting these pictures because although we went through some tough times, it's the good, wonderful memories of a sweet, kind man that matter."
"In the past year we had become close again. We last spoke on our son's 18th birthday. This is devastating news and I thank everyone for their lovely messages," she wrote.
Damian also took to Instagram to thank people who have contacted him to express their condolences.
"Thank you from the bottom of my heart to everyone that has reached out following the devastating news," he wrote. "I'm trying to reply to as many of you as I can, but please know I will always remember your kindness. This is a very strange and confusing time and I'm immensely grateful to be surrounded by my phenomenal family and friends."
Bing was a businessman who wrote the 2003 movie "Kangaroo Jack." He also financed and produced films such as 2000's Sylvester Stallone remake "Get Carter," "The Polar Express" and "Kingsman: The Golden Circle."
In addition to Damian, Bing is survived by a daughter, Kira Bonder, whom he shared with former pro tennis player Lisa Bonder.
Elizabeth Hurley with boyfriend Steven Bing at opening day at the Mercedes-Benz Polo Challenge at the Bridgehampton Polo Club in Bridgehampton, New York. 07/14/2001. Photo: Evan Agostini/ImageDirect
NEW YORK - OCTOBER 22: British actress Elizabeth Hurley and her boyfriend film producer Steve Bing enjoy an embrace during the Elton John concert at Madison Square Gardens on October 22, 2000 in New York. (Photo by Dave Hogan/Getty Images)
NEW YORK - SEPTEMBER 22: Former U.S. President Bill Clinton (L) and Hollywood mogul Steve Bing look on during the annual Clinton Global Initiative (CGI) September 21, 2010 in New York City. The sixth annual meeting of the CGI gathers prominent individuals in politics, business, science, academics, religion and entertainment to discuss global issues such as climate change and the reconstruction of Haiti. The event, founded by Clinton after he left office, is held the same week as the General Assembly at the United Nations, when most world leaders are in New York City. (Photo by Mario Tama/Getty Images)
LOS ANGELES, CA - SEPTEMBER 09: (L-R) Barbara Davis, Steve Bing and Carole Bayer Sager at the Farrah Fawcett Foundation's "Tex-Mex Fiesta" 2017 at Wallis Annenberg Center for the Performing Arts on September 9, 2017 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for the Farrah Fawcett Foundation)
BEVERLY HILLS, CA - DECEMBER 09: Talent agent Arnold Stiefel (L) and philanthropist Steve Bing attend 2016 March of Dimes Celebration of Babies at the Beverly Wilshire Four Seasons Hotel on December 9, 2016 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for March of Dimes )
BEVERLY HILLS, CA - DECEMBER 09: Steve Bing and producer Brian Grazer attend 2016 March of Dimes Celebration of Babies at the Beverly Wilshire Four Seasons Hotel on December 9, 2016 in Beverly Hills, California. (Photo by Michael Kovac/Getty Images for March of Dimes )
BEVERLY HILLS, CA - MAY 21: (L-R) Steve Bing, actors Alana Stewart and George Hamilton attend The Heart Foundation 20th Anniversary Event honoring Discovery Land Company's Mike Meldman at the Green Acres Estate on May 21, 2016 in Beverly Hills, California. (Photo by Frazer Harrison/Getty Images for The Heart Foundation )
LOS ANGELES, CA - NOVEMBER 07: Producers Steve Bing (L) and Arnon Milchan attend LACMA 2015 Art+Film Gala Honoring James Turrell and Alejandro G Iñárritu, Presented by Gucci at LACMA on November 7, 2015 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for LACMA)
LOS ANGELES, CA - NOVEMBER 07: (L-R) Producer Steve Bing, guest and LACMA Trustee Brian Grazer attend LACMA 2015 Art+Film Gala Honoring James Turrell and Alejandro G Iñárritu, Presented by Gucci at LACMA on November 7, 2015 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for LACMA)
LOS ANGELES, CA - NOVEMBER 07: Art Film Gala co-chair and LACMA Trustee Eva Chow, wearing Gucci, (L) and Steve Bing attend LACMA 2015 Art+Film Gala Honoring James Turrell and Alejandro G Iñárritu, Presented by Gucci at LACMA on November 7, 2015 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for LACMA)
SAN DIEGO, CA - JULY 09: (L-R) Actress Kelly Lynch, Open Road Films CEO Tom Ortenberg, screenwriter Mitch Glazer, actor Bill Murray and producer Steve Bing; attend the Open Road panel during Comic-Con International 2015 at the San Diego Convention Center on July 9, 2015 in San Diego, California. (Photo by Albert L. Ortega/Getty Images)
MIAMI, FL - DECEMBER 03: (L-R) Andre Balazs, Chelsea Scott, Steve Bing, Kelly Lynch and Mitch Glazer attend Marc Jacobs and Vanity Fair Cocktails at The Webster Miami on December 3, 2014 in Miami, Florida. (Photo by Astrid Stawiarz/Getty Images for Vanity Fair)
WEST HOLLYWOOD, CA - OCTOBER 15: Allen Shapiro, Steve Bing and Kelly Lynch attend the Malcolm Gladwell and Lisa and Eric Eisner in support of YES event at Sunset Tower Hotel on October 15, 2014 in West Hollywood, California. (Photo by Araya Diaz/Getty Images for Young Eisner Scholars)
HOLLYWOOD, CA - APRIL 27: Steve Bing and guest pose at Jane Fonda's hand and footprints ceremony at TCL Chinese Theatre on April 27, 2013 in Hollywood, California. (Photo by Gregg DeGuire/WireImage)
BEVERLY HILLS, CA - APRIL 17: Producer Steve Bing (L) and Honoree Steven Mnuchin recipient of the Philanthropic Leadership Award attend The Kaleidoscope Ball - Designing The Future benefitting the UCLA Children's Discovery and Innovation Institute at Mattel Children's Hospital UCLA at Beverly Hills Hotel on April 17, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images for BWR)
HOLLYWOOD, CA - APRIL 17: Steve Bing and Ziggy Marley attends the Los Angeles premiere of "Marley" at ArcLight Cinemas Cinerama Dome on April 17, 2012 in Hollywood, California. (Photo by Jeff Kravitz/FilmMagic)
LOS ANGELES, CA - MARCH 08: President of Israel, Shimon Peres (L) and producer Steve Bing attend an evening hosted by the Jewish community, the Consul General of Israel and the Jewish Federation of Greater Los Angeles on March 8, 2012 in Los Angeles, California. (Photo by Michael Kovac/WireImage)
RHINEBECK, NY - JULY 31: Real estate developer and film producer Steve Bing is seen on the streets hours before the wedding of Chelsea Clinton and Marc Mezvinsky on July 31, 2010 in Rhinebeck, New York. (Photo by Bryan Bedder/Getty Images)
WEST HOLLYWOOD, CA - OCTOBER 31: Steve Bing attends HEIDI KLUM'S 10TH ANNUAL HALLOWEEN PARTY PRESENTED BY MSN AND SKYY VODKA at Voyeur on October 31, 2009 in West Hollywood, CA. (Photo by DAVID CROTTY/Patrick McMullan via Getty Images)
WASHINGTON - MARCH 05: Brad Pitt and Steve Bing arrive to discuss the "Make it Right" project in the Speaker's Balcony Hallway in the Capitol Building on March 5, 2009 in Washington, DC. (Photo by James Devaney/WireImage)
Steve Bing (Photo by Rabbani and Solimene Photography/WireImage)
Steve Bing during 34th Annual AFI Lifetime Achievement Award: A Tribute to Sean Connery - Arrivals at Kodak Theatre in Hollywood, California, United States. (Photo by Jason Merritt/FilmMagic)
DUBAI, UNITED ARAB EMIRATES - DECEMBER 16: Steve Bing poses for a photo at The Madinat Jumeirah on December 11, 2005 in Dubai, United Arab Emirates. (Photo by Chris Jackson/Getty Images)