Berlin Breitscheidplatz: Lorry kills nine at Christmas market
Media captionFootage shows the aftermath at the scene
A lorry has ploughed into a busy Christmas market in the heart of Berlin, killing nine people and injuring many more, police say.
Police say they suspect it was a deliberate attack. Video shows stalls knocked over and people lying injured.
A suspect has been arrested while the suspected co-driver was found dead, police say.
The market is at Breitscheidplatz, close to the Kurfuerstendamm, the main shopping street in the city’s west.
Chancellor Angela Merkel’s spokesman, Steffen Seibert, tweeted to say: "We are in mourning for the dead and hope that the many injured can get help."
As emergency vehicles filled the area, Berlin police appealed to the public to avoid the area and stay at home.
Facebook has set up a "Safety Check" page for people affected to let their loved ones know they are safe.
The market is situated at the foot of the Kaiser Wilhelm memorial church, which was kept as a bombed-out ruin after World War Two.
"We are investigating whether it was a terror attack but do not yet know what was behind it," a police spokesman told AFP news agency.
"One person was detained. The cab of the truck was found empty."
A British eyewitness, Mike Fox, told The Associated Press at the scene that the large lorry had missed him by only about 3m as it drove into the market, tearing through tables and wooden stands.
"It was definitely deliberate," said the tourist, visiting from Birmingham.
He said he had helped people who appeared to have broken limbs, and that others were trapped under Christmas stands.
Jan Hollitzer, deputy editor in chief of Berliner Morgenpost, told CNN: "I heard a big noise and then I moved on the Christmas market and saw much chaos... many injured people. It was really traumatic."
The Berliner Zeitung reports that police have set up a meeting point for relatives at the scene.
A photographer for the DPA news agency said that armed police were at an entrance to the nearby zoo.
Images of the lorry show it was registered in neighbouring Poland.
The incident evoked memories of the lorry attack on Bastille Day crowds in the French city of Nice on 14 July, when 86 people were killed. That attack was claimed by so-called Islamic State.
A series of small-scale attacks by Islamist militants alarmed Germany earlier this year.