Ghana’s defense and environment ministers were killed Wednesday in a helicopter crash, the presidency confirmed, hours after the military reported the aircraft with eight people on board had vanished from radar.

Edward Omane Boamah became President John Mahama's defense minister earlier this year, shortly after Mahama's swearing-in in January.

Ibrahim Murtala Muhammed was serving as the minister of environment, science and technology.

Everyone on board was killed in the accident, authorities said.

"The president and government extend our condolences and sympathies to the families of our comrades and the servicemen who died in service to the country," said Mahama's chief of staff Julius Debrah.