A concert in Rotterdam that was scheduled for Aug. 23, was cancelled following what was thought to be a terrorist threat. 

The concert was for Ah-Las, a U.S. rock group, and was cancelled at the last moment by Netherland Police. Another concert was held by the band in the western city of the country.

The hall, which had a capacity of 1,000 guests, was evacuated due to the threat, but no further details have been provided by the source.