A 21-year-old Arsenal fan has been arrested after an incident involving a laser pointer on Tuesday night.
The Gunners took on Chelsea in the Premier League at the Emirates Stadium and won 3-1.
However, the game was marred by an incident that saw a laser pointed at the face of Blues winter signing Mykhailo Mudryk.
An arrest has been made following the use of a laser during last night's match," Arsenal said.
This behavior is dangerous and totally unacceptable, and we will fully support the police with their enquiries.
We will obviously take the strongest possible action"