At least 15 people were killed and 27 wounded when fuel tankers exploded in the town of Charikar, northwest of the Afghan capital Kabul on Wednesday, destroying a nearby bus, residents and officials said.
A security official said a sticky bomb destroyed two tankers, setting off an explosion that engulfed the bus, burning many passengers to death.
There was no immediate claim of responsibility for the attack, which came a day after up to eight people were killed by a suicide bomber in Kabul.