Ghana's President John Mahama has promised a full investigation into Wednesday's helicopter crash that killed two government ministers and six other people.

The bodies of former Minister for Environment Ibrahim Muhammed Murtala, and Deputy National Security Coordinator, Alhaji Muniru Limuna Mohammed, were interred at a military cemetery after a tribute by

The helicopter had taken off from Accra, the capital, en route to a mining conference when it went “off the radar,” the armed forces said.