A man with an axe attacked several people at the main train station in Dusseldorf, Germany, on Thursday, authorities and witnesses say.
It is not known how many people were injured.
This is a breaking story and will be updated. Here is what we know so far:
1. A Suspect Was Taken Into Custody at the Train Station by Police
The suspect was taken into custody at the train station, the German newspaper Bild reports.
His identity has not yet been released.
Police said there is no evidence of any other suspects, according to Bild, which previously reported a second man had been taken into custody and two others were being sought.
2. Police Haven’t Released a Motive for the Attack
Police have not yet released a motive for the attack. It is has also not yet been called terrorism.
According to Bild, the suspect randomly attacked four or five people with the axe.
The Rheinische Post reports a 13-year-old girl was among those injured. A witness told the newspaper he helped treat the girl’s wound and get her to her father.
The newspaper also reports a 20-year-old man suffered a head injury and was pulled onto a train by friends to escape the attacker.
3. Trains Are Not Stopping at the Station & Witnesses Reported a Large Police Presence
Passengers on trains tweeted that they were not stopping at the Dusseldorf station because of the incident.
A video from the scene shows blood on the ground and emergency responders appearing to give treatment to a victim:
Witnesses said there was a large police presence at the station, and reported chaos when the attack occurred.
A police helicopter was circling above the station and witnesses said there were anti-terror police at the scene among the heavily armed officers.
4. A Man With an Axe Was Fatally Shot After Attacking 4 People on a German Train Last Year
Five people were injured on July 18, 2016, when a man with an axe attacked passengers on a train in Wuerzburg in Southern Germany, according to the BBC.
The attacker, an asylum seeker from Pakistan named Muhammed Riyad, was fatally shot by police.
Police said Riyad left behind a martyrdom video and was instructed to carry out the attack by ISIS.
5. German Authorities Have Been on High Alert After Multiple Terror Attacks
German authorities have been on high alert for possible terrorist activity in recent years after a series of deadly attacks in the country, including the Wuerzburg train attack.
In December, 12 people were killed and 48 were injured in an ISIS-inspired truck attack on a Christmas market in Berlin. In July 2016, a suicide bomber detonated an explosive outside a wine bar in Ansbach. Twelve people were injured, but the bomber was the only person killed.