Afghan officials say bomb attacks in two eastern provinces killed at least 10 police officers and one civilian on November 10.
A suicide bomber blew himself up in front of the provincial police headquarters in Logar province, killing seven police and a civilian.
A spokesman for the governor said the commander of the local police was among the dead in the blast in the provincial capital, Pul-e-Alam.
That attack echoed a bombing that killed one person near the Afghan police headquarters in the capital, Kabul, a day earlier.
Officials said three police were killed by a bomb planted in a rickshaw in Nangarhar province.
Also on November 10, a bomb planted in a flowerbed near a university in Kabul wounded three people.