At least 13 people were killed when a suicide bomber struck the home of a prominent politician in Jalalabad Sunday, officials said, in the second deadly attack in the eastern Afghan city in less than a week.

At least 13 people were killed when a suicide bomber struck the home of a prominent politician in Jalalabad Sunday, officials said, in the second deadly attack in the eastern Afghan city in less than a week.

The Taliban shrugged off responsibility for the bombing, which also left 14 people wounded on the eve of a new round of four-country negotiations aimed at restarting peace talks with the insurgents.

The latest attack came during a "jirga", an assembly of tribal leaders, at the home of politician Obaiduallah Shinwari, who escaped unscathed.

"Thirteen people were killed and 14 others injured when a suicide bomber targeted the house of Shinwari," said a statement from the governor of Nangarhar province, of which Jalalabad is the capital.

Shinwari is a well-known member of Nangarhar's provincial council and his family is said to be actively involved in local politics.

The bombing is the latest deadly attack in the city since Wednesday, when the Takfiri group, ISIL (so-called Islamic State in Iraq and Levant) claimed responsibility for a four-hour gun and bomb siege targeting the Pakistani consulate.

All three attackers and seven security forces were killed in the assault, the first major ISIL attack in an Afghan city and on a Pakistani government installation.