Police have arrested a suspected terrorist in Rotterdam, after finding a Kalashnikov AK-47 with two full magazines of ammunition in his house, the public prosecution service announced on Friday.

The 30-year old was taken in on Wednesday and is suspected of preparing a terrorist crime. Police also discovered four boxes of illegal and highly-explosive fireworks, a large painting of a flag used by Islamic State (or Daesh), mobile phones and 1,600 euros in cash.

The suspect was brought before a magistrate in Rotterdam on Friday and is being held in custody for two weeks.