Updated

Kenyan police have arrested 11 people, including three Italians, accused of drug-related offenses in a major security operation.

Hamis Massa, head of the police anti-narcotics unit, said Friday that three kilograms of heroin, two pistols and two vehicles were seized in the raid.

Massa says wanted drug baron Stephen Bosire was among the eight Kenyans arrested.

President Uhuru Kenyatta has ordered an immediate crackdown on drug dealers in the coastal area that includes Mombasa, which is popular with tourists.

Kenya in January extradited four alleged drug traffickers to the United States, where they are facing charges.