Nearly 50 people have been killed and several others sustained injuries in central Nigeria after a fuel tanker caught fire at an army checkpoint.
The accident took place near the Bauchi state's border with the Plateau state on Friday night.
A local official says the tanker overturned when it smashed into a convoy of 17 vehicles.
The collision set off an enormous explosion that sparked a huge blaze.
"Seventeen vehicles at the checkpoint were engulfed in flames.... In all from our estimation we have around 50 dead," AFP quoted a road safety official as saying.
The checkpoint was set up in the run-up to Nigeria's three-week election period that was expected to begin on Saturday but was postponed until Monday.
Nigeria has poor road safety records and inter-city roads accidents are common in the African country.