Frank Lampard's goal against his former side in the 2-0 win a t Stamford Bridge on Sunday was met with missiles being thrown onto the pitch from the visiting supporters
Police have confirmed four West Ham supporters were arrested at Stamford Bridge on Sunday in the London derby between Chelsea and the Hammers.
Two fans have been detained on suspicion of racially aggravated public order offences while, as one more was charged with the theft of a seat and another in custody for suspected affray.
