A car bomb ripped through a street in the eastern Turkish town of Van on Friday, killing three people and wounding 22 in an apparent attack on the local governor, who was unhurt in the blast, police said. The bomb, planted in a parked car and detonated by remote control, revived security worries in Turkey after a series of explosions ahead of and during a NATO summit held in the country's largest city Istanbul this week. The blast, in the town center, shattered windows in surrounding buildings and tore holes in the bodywork of the official black Mercedes car carrying Hikmet Tan, governor of an impoverished, mountainous province bordering Iran. There was no immediate claim of responsibility. Tan, who was on his way to work, told CNN Turk television: "I was going to work when there was a large explosion around 9:15 a.m. (0215 EDT). All windows were shattered around the car... Nothing happened to me, the bodyguard or driver." The blast killed pedestrians on their way to work and shopkeepers. Some of the 22 injured were seriously hurt, a police official said. Television pictures showed men lifting a body from the middle of the road and the burning remains of a vehicle amid water gushing from water pipes apparently burst in the blast. On Tuesday a small bomb exploded on a plane at Istanbul airport, injuring three cleaners, hours before President Bush flew from the same location.