Ghanaians on Sunday pushed the government to improve safety at fuel stations after six people were killed when a tanker truck carrying natural gas caught fire in the nation's capital, triggering explosions.
The former President was reacting to the gas explosion that occurred at Atomic Junction in Accra, Saturday.
Residents ran away from the explosion, which lit up the sky with flames.
"Unfortunately there are some fatalities and we are working to have the numbers", Deputy Information Minister Kojo Oppong Nkrumah told a local radio station. There were also 35 injured and five were in intensive care overnight.
More than 200 police personnel were also deployed to help cordon off the area of the explosion, making it hard to access.
He added that the main blaze was largely under control and that the government planned to release casualty figures on Sunday morning.
"There was some panic and we all just moved away from the scene", said eyewitness George Agbey.
More than 20 vehicles are also reported to have been razed down by the explosion.
Ambulances had been deployed, and those people who sustained various degrees of injury have been sent to hospitals, he said.
The Accra city officials took to social media to make people aware of the explosion.
In May, at least six people were killed in a tanker explosion at a factory in Takoradi, in Ghana's Western Region and back in June 2015, around 150 were killed after an explosion at a gas station in Accra.