 Guinea-Bissau's President Umarro Mbalo, who survived an attempted coup on Wednesday, has said that many members of the security forces were killed, repelling an attack on democracy that they may have linked to drug trafficking. Mbalo, who said it was not just an attempted coup, but a well-prepared four and an organized attack to kill him and members of his cabinet, said the attackers could not get in. Guinea-Bissau's President has said an attempted coup on Tuesday may have been linked to drug trafficking. Heavy gunfire had sounded near a government compound where Umarro Sissoko Mbalo had been chairing a cabinet meeting. When I was elected President of the Republic, I promised to fight two things, corruption and drug trafficking, and this is also linked to that, and I knew what the price was, but the fight continues. Guinea-Bissau is known as a major transit point for Latin American cocaine headed for Europe. That has contributed to the West African country's instability. It's seen 10 coups or attempted coups since independence from Portugal in 1974. Only one democratically elected president has completed a full term. Mbalo said it was not a failed coup, but an assassination attempt. State radio said on Wednesday that at least six people had been killed, two members of the presidential guard and four assailants.