THE HAGUE, Netherlands – Dutch police said Thursday they had arrested another man after cancelling a Rotterdam concert by a US rock band following a tip-off about a possible terror threat.
The man was detained before dawn in the Brabant region, police said in a statement, adding that the driver of a van with Spanish plates carrying gas canisters, who was detained late Wednesday in Rotterdam, also remained in custody.
The arrests came after last week's twin vehicle attacks in Spain that killed 15 people, which were claimed by the Islamic State group.
"A 22-year-old man from Brabant was arrested Thursday morning in the investigation into a terrorist threat Wednesday evening in Rotterdam," police said in a statement.
It was the second arrest after that of the Spanish van driver who was detained only hours after officials cancelled a concert by Californian rock group Allah-Las.
The driver, who was "possibly driving under the influence", was "arrested because of his driving", police said, adding that officers had found a "number of gas canisters" in his van.
The man, whom police said was a mechanic, will be interviewed again Thursday.
But Dutch authorities cautioned there may be no link between the van driver and the tip-off about a terror threat which came from Spanish police.
Concerts have previously been targeted by Islamic State.
In May this year, 22 people were killed at a pop concert in Manchester, England while 55 people died in a terror attack at a rock concert in Paris, France in November 2015.