Authorities in the Netherlands worked Tuesday to determine the motive behind a shooting on a tram that left three people dead and five others wounded in the city of Utrecht, VOA reports.
Hours after the shooting took place Monday, Dutch police arrested a suspect identified as 37-year-old Turkish-born Gokmen Tanis.
Dutch Prime Minister Mark Rutte said a terror attack “could not be excluded,” while the Turkish news agency Anadolu reported that relatives of Tanis in Turkey said the shooting could have been part of a family dispute.
A Dutch regional prosecutor said the suspect had previously been arrested in the Netherlands, but did not give further details.
Security has been increased at Dutch airports, as well as mosques. Schools in Utrecht have been closed, and residents were advised to stay home.
Political parties suspended campaigning for provincial elections scheduled for Wednesday that will also determine the makeup of the Dutch senate.
Utrecht is the fourth-largest city in the Netherlands, known for its canals and large student population. Gun violence in the city is rare, as it is across the Netherlands.