Authorities say insurgent attacks across Afghanistan have killed seven people, including a provincial judge.

Police spokesman Hazrat Hussain Mashreqiwal in Nangarhar province said a bomb blast Wednesday killed Judge Mohammad-ul Hassan and wounded two of his daughters in the city of Jalalabad. The judge served in neighboring Laghman province.

In another attack, police spokesman Jawed Basharat said insurgents killed six people working on a road project, including the head of a construction company, in northern Baghlan province. Basharat said the attack also wounded one person and two remain missing.

Taliban insurgents have stepped up their attacks on Afghan soldiers and police as U.S. and NATO forces concluded their combat mission at the end of last year.