In this image taken from video a police officer examines a van behind a cordoned-off area in Rotterdam after a concert by an American rock band was cancelled following a threat. Police detained the driver of a van with Spanish license plates carrying a number of gas tanks inside. Picture: RTL via AP

Ulm, Germany - Dutch police have made another arrest in connection with a terrorism scare at a Rotterdam concert the night before, according to a Dutch media report Thursday.

It would be the second arrest linked to the scare, although authorities told public broadcaster NOS that an arrest Wednesday night was probably unrelated to the incident.

Authorities closed off a venue where the US band Allah-Las was set to play in front of around 1 000 spectators. Rotterdam mayor Ahmed Aboutaleb said at a press conference that night that a van full of gas canisters was found near the concert venue.

The new arrest came around 2 am (0000 GMT) in the town of Nordbrabant, which lies near the Belgian border. A 22-year-old man was arrested in his home, which was searched, reported NOS.

At the same time, NOS reported that an initial arrest at the site of the concert was probably not related to the case.

That arrest was of a Spanish mechanic with the truck full of gas canisters. Authorities have said he was drunk and that there was a reasonable explanation for his cargo.

Authorities in Spain have said that there was, so far, no link between the Rotterdam incident and last week's terrorist attack in Barcelona, according to a report in El Mundo.