An Afghan official says at least 11 people have been killed and 13 wounded in a suicide attack at the home of a prominent politician in the increasingly volatile eastern city of Jalalabad.

Ataullah Khyogani, spokesman for the Nangarhar provincial government, said Sunday that the attacker detonated his explosives around 10:30 a.m. at the residential compound of Obaidullah Shinwari.

Shinwari is a member of Nangarhar's provincial council and his family is active in local and national politics.

Khyogani says a guesthouse on the compound was crowded with people invited to a family event.

"The number of casualties is likely to increase because there were so many people there," Khyogani says.

The compound is close to the Pakistani consulate, targeted last week in an attack claimed by the Islamic State group.