President John Mahama has announced three days of national mourning after a deadly fire in the country's capital city.
An explosion at a petrol station in Accra,killed around 90 people sheltering from a storm early, emergency services said, in the worst disaster to strike the West African country in more than a decade.
The force of the blast gave few a chance to escape.
People were burned alive where they stood under the station's awning, or trapped in the charred wreckage of cars and minivans parked on its forecourt.
The accident was caused by a fire at a nearby lorry terminal.
Flames spread to the state-run GOIL petrol station via spilt fuel floating on flood water, fire brigade spokesman Prince Billy Anaglate said.
"It was an explosive fire and so the people sheltering at the filling station did not have an opportunity to escape," Mr Anaglate said.
It was Ghana's worst disaster since more than 120 people died in May 2001 in a stampede at the national stadium during a football match, a police spokesman said.
Low-wage workers struggling to get home through the storm, with roads closed and minivan buses not running, formed the bulk of those caught in the explosion, witnesses said.
Several other people were swept away by the seasonal storm in the coastal city and thousands more were made homeless as flood waters rose, officials said.
By morning, security forces had doused the flames and secured the area, pegging back anxious crowds.
Rescue workers wearing face masks retrieved the remaining bodies, including that of a small child, and piled them onto a truck.
Some cars were still smouldering.
President Mahama said he was heartbroken by the loss of life.
He blamed the floods partly on people building homes and businesses on waterways, blocking the city's drainage systems.
"This loss of life is catastrophic and almost unprecedented," Mr Mahama said as he visited the scene.
"We must sit down and strategise to make sure this doesn't happen again."
Some officials said many new Accra gas stations had sprung up without proper permits, but noted that the destroyed GOIL station had been there for years.
