At least 59 people were killed late Saturday in a fiery collision between a bus and an oil tanker near the southern port city of Karachi in Pakistan. The bus, which was overcrowded, was reportedly hit head-on by the tanker.

At least 20 people were killed Monday when an explosion rocked a bus station in the northeast Nigerian city of Gombe, which has recently come under repeated attacks blamed on Boko Haram insurgents, officials said.