Suicide car bombing at Nigeria bus station kills four, wounds 35

A suicide bomber drove a car packed with explosives into a busy bus station in the northeast Nigerian town of Potiskum on Sunday, killing four people and wounding 35, police said.

There was no immediate claim of responsibility for the attack, which bore the hallmarks of Islamist militant group Boko Haram and added to the country's litany of security woes less than a month before a closely fought presidential vote.