At least 100 people have been killed by an explosion at a leaking petrol pipeline in the Kenyan capital city of Nairobi.

Entire families were wiped out in the mid-morning incident, which took place in in a densely populated slum.

Medical personnel at Nairobi's Kenyatta Nation Hospital are struggling to treat the stream of injured being rushed in.

Al Jazeera's Khadija Magardie reports.