Clubs charged over Carling Cup crowd carnage
"West Ham United FC have been charged on four counts of failing to control their supporters whilst Millwall FC have been charged on three counts," an FA statement read.
Premier League side West Ham's 3-1 extra-time win over League One club and London rivals Millwall on Aug. 25 was marred by crowd violence before kick-off and during the match at Upton Park.
Supporters invaded the pitch twice after West Ham scored and a 44-year-old man was taken to hospital with a stab wound.
Both clubs now have 14 days to respond to the charges.