The Football Association has confirmed it will launch a probe into the coin-throwing incidents that marred two Premiership matches over the weekend.
Arsenal striker Robin van Persie was struck by a coin thrown from the crowd during the 1-0 defeat at Upton Park on Sunday, while 24 hours earlier Fulham's Claus Jensen suffered a similar fate in the victory over Everton at Craven Cottage.
"We will be looking at the referees' reports and speaking to the relevant clubs," confirmed an FA spokesman.
"We want to see what steps the clubs are taking to identify who is responsible.
"The key thing is to identify those responsible and make sure they are dealt with appropriately."