At least two Taliban force members and two civilians were killed in a targeted attack in Jalalabad on Saturday in Afghanistan, reported TOLO news.
Two other civilians were wounded in the attack, said Mohammad Hanif, a cultural official for the city's surrounding province, Nangarhar.
No one claimed responsibility for the shooting, but the Islamic State group, which has a strong presence in Nangarhar and considers the Taliban an enemy, has previously claimed several attacks against them, including several killings in Jalalabad.
The two civilians killed were Sayed Maroof Sadat, a former spokesman for the Nangarhar department of agriculture, and his cousin, Sharif Sadat told the AP. Sadat's son was among the two wounded, he added.
Since the Taliban takeover of Afghanistan in mid-August, attacks by IS militants against them have increased. The rise has raised the specter of a wider conflict between the two extremist groups.
On Friday, Taliban fighters raided a hideout of the Islamic State group north of Kabul, killing and arresting an unspecified number of militants, a Taliban spokesman said. IS activity in Nangarhar province has also led to Taliban crackdowns there.
(with inputs from AP)