A gunman who murdered nine people and injured 16 others including children at a Munich shopping centre was an 18-year-old German-Iranian, police believe.
Three people remain in a critical condition after the teenager, who has not been named, opened fire in a McDonald's before rampaging through the nearby Olympia-Einkaufszentrum mall on Friday evening.
Investigators suspect the youth, who is thought to have lived in the south German city for more than two years and not thought to have been known to law enforcement agencies, acted alone before killing himself.
Police also dismissed earlier fears that there were up to three gunmen involved in the attack triggered by two bystanders fleeing in a car.
Any motive behind the attack currently remains "totally unclear" and investigations will be "running on all cylinders", Munich police chief Hubertus Andrae said.
Speaking at a press conference in the early hours of Saturday morning he said the attack "makes us speechless and our thoughts go out in particular to the victims".
"As a result of the manhunt with a large-scale operation force we have found a male person, who given the current level of intelligence committed suicide," Andrae said.
"On the basis of witness reports and on the basis of CCTV footage we assume that this person is the suspect. We currently have no indications that there were further perpetrators involved. The suspect is, according to the current level of intelligence, an 18-year-old Iranian from Munich."
A reporter at the press conference asked if a "game" posted on Facebook offering free food at the McDonald's at 4pm on Friday was an attempt to encourage people to congregate at the scene before the attack.
Andrae said the game was "one part of the comprehensive investigation we are conducting".
The killings come after a 17-year-old Afghan asylum seeker launched an axe and knife attack on passengers on a train in Wuerzburg, southern Germany on Monday.
Islamic State claimed responsibility for the attack in which five people were injured. The teenage axeman, Riaz Khan Ahmadzai, was shot dead by police.
The attack took place eight days after more than 80 lives were lost when a lorry ploughed into crowds watching a Bastille Day firework display in Nice, France. IS said it was also responsible for the attack by 31-year-old Mohamed Lahouaiej Bouhlel.