Three law enforcement officers have been killed and three have been injured in a shooting in Louisiana, US authorities said.
A sheriff's spokesman in Baton Rouge also said that one suspect is dead and two others are believed to be at large.
Spokesman Casey Rayborn Hicks issued a statement asking the public to report anything suspicious in the area to 911.
Officers and deputies from the Baton Rouge Police Department and East Baton Rouge Sheriff's Office were involved in the Sunday morning shooting that took place less than 1 miles from police headquarters.
The shooting comes amid spiralling tensions across the city -- and the country -- between the black community and police. The races of the suspect or suspects and the officers were not immediately known.
Police-community relations in Baton Rouge have been especially tense since the killing of 37-year-old Alton Sterling, a black man killed by white officers earlier this month after a scuffle at a convenience store.
The killing was captured on cellphone video and circulated widely on the internet.
It was followed a day later by the shooting death of another black man in Minnesota, whose girlfriend livestreamed the aftermath of the incident on Facebook.
Then on Thursday, a black gunman in Dallas opened fire on police at a protest about the police shootings, killing five officers and heightening tensions even further.
Over the weekend, thousands of people took to the streets in Baton Rouge to condemn Sterling's death, including hundreds of demonstrators who congregated outside the police station. Authorities arrested about 200 people over the three-day weekend.