Media playback is unsupported on your device Media caption Priority 'finding Utrecht tram gunman'
A gunman has opened fire inside a tram and at several other locations in the Dutch city of Utrecht, authorities say.
Several people have been injured and one is feared to have died, media reports say.
Police say the gunman is still at large. Trains and trams have stopped running and schools have been asked to keep their doors closed.
Counter-terrorism police reportedly say the shooting "appears to be a terrorist attack".
Dutch anti-terrorism co-ordinator Pieter-Jaap Aalbersberg said all efforts were now focused on catching the gunman. He also said there could be more than one perpetrator.
The threat level has been temporarily raised to its highest point in the province of Utrecht.
Utrecht University has reportedly closed all buildings, with nobody allowed in or out. Trains are also not allowed to run into Utrecht Central station, and mosques across the city have reportedly been closed due to security concerns.
Heavily armed police reportedly gathered outside a house on a street near the 24 Oktoberplein junction, where the tram attack took place.
Image copyright EPA Image caption One person is feared to have died and several were injured in the tram shooting
Prime Minister Mark Rutte said he was "deeply concerned" and cancelled his weekly coalition talks.
Police have asked for photos of the attack from members of the public.
Image copyright EPA Image caption Anti-terrorism police are at the scene
Police have increased security at airports throughout the Netherlands.
Security services have reportedly told Utrecht's University Medical Centre to open the dedicated emergency ward to help care for the injured.
The tram shooting happened at about 10:45 local time (09:45 GMT).
"A man started shooting wildly," one eyewitness told Dutch news site NU.nl.
Another witness told Dutch public broadcaster NOS that he saw an injured woman with blood on her hands and clothes.
"I brought her into my car and helped her," he said. "When the police arrived, she was unconscious."
It is unknown how many were injured or how seriously they were hurt.
Utrecht's transport authority said all trams have now been cancelled, due to the increased threat level.
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Martacus on March 18th, 2019 at 13:10 UTC »
Currently in a building near the shooting. The whole city is essentially on lockdown. Airports have shut transit from some stations. All transit in Utrecht is shut down. I am lucky to have family who work close to here to pick me up. Most of my friends and colleagues are trapped here for now.
I'm safe, or atleast feel safe. There are more than 40 police cars next to my building. But damn what a shock. Helicopters still flying over our heads.
EDIT: My view (someone elses photo's, u/Dikai posted them here) https://imgur.com/gallery/4feRgX3
humpdayreporter on March 18th, 2019 at 11:10 UTC »
all the reports sound like a lot of confusion and conflicting accounts.
poop1968 on March 18th, 2019 at 11:06 UTC »
Suspect still at large, drove off in a red car. Witnesses say he started shooting in all directions. No casualty numbers yet.
Edit: at least one death confirmed on site. Edit2: Dutch terrorist threat has been raised to highest level 5 in the Utrecht province. Edit3: SWAT forces are surrounding houses in Utrecht (as shown on TV) Edit4: 3 dead, 9 wounded announced by major. Edit5: police confirm 3 dead and 5 wounded. Police still searching for one shooter although more are not ruled out.
Final update, suspect in custody.