VALENCIA, Spain (AP) _ A car bomb exploded Thursday alongside a military jeep escorting an army bus, injuring 11 people, including four soldiers, a police spokesman said.

There was no immediate claim of responsibility, but police suspected the Basque separatist organization ETA.

The explosion sent shrapnel flying across the intersection of streets in this eastern city, the police spokesman said. Most injured were not seriously hurt, he said on condition of anonymity.

ETA seeks independence from Spain for the three-province northern Basque region and has killed more than 650 people in attacks since 1968 aimed at reaching that goal.

So far this year, ETA has claimed responsibility for killing 25 people.

The police spokesman said the car bomb apparently had targeted the army bus, which picks up soldiers each morning in central Valencia to take them to work.

But the main force of the explosion hit a military jeep escorting the bus, he said.