At least 29 people were killed Sunday in the Ugandan capital Kampala when a fuel tanker caught fire after a car crashed into it, BBC reported.
Many of those who died had rushed to the scene on a main road in Kampala to siphon off the fuel, police said.
Around 20 motorbikes were burnt, and witnesses told BBC they were used to take people to collect the petrol.
Kampala is a key transit point for tankers taking fuel to landlocked Rwanda, Burundi and the Democratic Republic of Congo.
More than 20 people are said to be in hospital.
Many of the victims ran to a nearby swamp to try and douse the flames. Many bodies were found in the water.