Brussels police say that the incidents all occurred in the vicinity of the Zespenningenstraat, near the Brussels stock exchange. The attacks happened between 9 February and 6 March. Five women aged 20 to 81 were attacked.
The suspect is a 27-year-old who was detained in the centre of Brussels on Tuesday. He was in possession of a kitchen knife and was known to the police in connection with several thefts and banned arms possession.