Police have named the suspect in a shooting attack on a tram in the central Dutch city of Utrecht which has left one person dead and others injured.
Officers identified Turkish-born Gokman Tanis, 37, in connection with the incident. The public have been urged not to approach him.
Authorities immediately raised the terror alert for the area to the maximum level and said they are considering the possibility of a "terrorist motive" in the attack.
The police asks you to look out for the 37 year old Gökman Tanis (born in Turkey) associated with the incident this morning at the #24oktoberplein in #Utrecht. Do not approach him but call 0800-6070. pic.twitter.com/U1IWEDtUYu
— Politie Utrecht (@PolitieUtrecht) March 18, 2019
Dutch military police went on extra alert at Dutch airports and at key buildings in the country as the Utrecht manhunt took place.
READ MORE: Utrecht shooting: Multiple injuries after 'shots fired on tram'
Police, including heavily-armed officers, flooded the area after the shooting on Monday morning on a tram at a busy traffic intersection in a residential area.
Anti-terror officers gathered in front of a block of flats close to the scene.
Utrecht police said trauma helicopters were sent to the scene and appealed to the public to stay away.
Dutch Prime Minister Mark Rutte called the situation "very worrying" and the country's counter-terror co-ordinator said in a tweet that a crisis team was meeting to discuss the situation.
Police spokesman Bernhard Jens said no-one had been detained yet in the shooting and one possible "explanation is that the person fled by car". He did not rule out the possibility that more than one person was involved in the attack.
"We want to try to catch the person responsible as soon as possible," Mr Jens said.
The country's anti-terror co-ordinator raised the threat alert to its highest level around Utrecht. Pieter-Jaap Aalbersberg said the "threat level has gone to 5, exclusively for the Utrecht province".
Police in Germany say they have upped surveillance on the country's border and are on the lookout for the gunman.
Heinrich Onstein, a spokesman for the federal police in the border state of North Rhine-Westphalia, said additional police had been added to watch not only major roads, but also minor crossings as well as railway routes
READ MORE: Utrecht shooting: Eyewitnesses describe horror after shots fired on tram
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