The 10 women and five men -- who include three pilots -- were detained on arrival from Johannesburg , South Africa , after customs officials found 50 kilograms ( 110 pounds ) of marijuana and 4 kilograms ( 8.8 pounds ) of cocaine in three pieces of baggage , HM Revenue and Customs said . 10 women and 5 men were detained on arrival from Johannesburg . London Airport Police found marijuana and cocaine in baggage . Officials : The drugs are estimated to be worth $ 5000 . South African Airways said it launched its own investigation .
10 women and 5 men were detained on arrival from Johannesburg . London Airport Police found marijuana and cocaine in baggage . Officials : The drugs are estimated to be worth $ 5000 . South African Airways said it launched its own investigation .