KABUL, Afghanistan (AP) — Three sticky bomb attacks in the Afghan capital Kabul on Saturday killed at least five people and wounded two others, a police official said, amid a surge in violence in the war-torn country.

Kabul police spokesman Ferdaws Faramarz said two explosions caused by sticky bombs attached to vehicles took place 15 minutes apart and a third targeting a police vehicle exploded about two hours later.

No group immediately claimed responsibility.

The majority of bomb attacks in the capital Kabul in recent months have been sticky bombs — explosive devices with magnets that are at...