The FA will be speaking to both QPR and Chelsea for their observations on QPR fans throwing missles at Chelsea players during their derby clash on Sunday.
As Chelsea players celebrated Cesc Fabregas' late winner against their local rivals, angered Hoops fans threw an array of objects including coins, lighters and plastic bottles at the huddle of players.
Full back Branislav Ivanovic was seen on camera being hit on the neck by a lighter and reacting by holding his neck in pain.
Players picked up some of the items thrown to show to the officials, and managed to see out the remaining minutes to earn a victory that took them one step closer to the Premier League title, seven points clear of second placed Arsenal with a game in hand.
After the game Chelsea boss Jose Mourinho refused to condemn QPR fans who had thrown the objects, saying that if someone throws a pound coin at you 'you pick it up'.
QPR manager Chris Ramsey was less pleased, and insisted that the fans involved are not wanted at the club.
The FA is waiting on the match official's report before acting as well as asking the two clubs for their descriptions of what went on.