At least 14 people have been killed and more than 45 have been injured after a car bomb exploded next to a bus in Israel.
Witnesses said some passengers were trapped in the burning bus.
One couple burned to death as they hugged each other, an Israel Army Radio reporter at the scene said.
There was no immediate claim of responsibility.
The blast went off on a road near the town of Megiddo as people were heading to work shortly after 7am.
"A car drove alongside the bus and exploded. The bus burst into flames, and it's a tough sight, the bus is completely burnt out," said regional police chief Yaakov Borovsky.
The bus left from Tel Aviv and was making several stops in northern Israel.
The route passes a number of mostly Arab towns, and both Arabs and Jews were believed to be on the bus, authorities said.
A police source, speaking on condition of anonymity, said at least 14 people were killed and three were critically injured.