KANDAHAR, Afghanistan (AP) — More than 30 Taliban fighters and four policemen were killed in a series of clashes, airstrikes and bombings in Afghanistan, officials said today.

Taliban fighters attacked a police checkpoint in the Nad Ali district of southern Helmand province Tuesday, sparking a clash that killed 18 militants, provincial police chief Mohammad Hussein Andiwal said.

The militants attacked the officers guarding a government compound in the district before being repelled by the police, Andiwal said. There were no casualties among Afghan troops, he said.