Sort of like napalm, I think, or at least an exploded gas tank. From Time.com:
(BAGHDAD) — A suicide bomber detonated an explosive-rigged car outside Iraq's main religious affairs office for Shiite Muslims on Monday, shearing off the facade of the three-story building and killing at least 23 people in the deadliest single attack in the country in three months, officials said.
More than 70 people were wounded in the explosion that shattered nearby windows and damaged cars in Baghdad's central Bab al-Muadham area, two police officials said. Firefighters searched the debris for survivors.