There were two explosions near the city's directorate of finance, the Nangarhar provincial governor's spokesman Attaullah Khogyani said, adding that "a number of attackers" had entered the building.
The first fighters from the last rebel bastion in Eastern Ghouta left on Sunday for insurgent-held territory in the country's northwest, state media said, raising hopes of an end to conflict in the enclave.
More than 600 civilians have been killed in the enclave outside Damascus since Russia-backed regime forces launched an assault on February 18.
HE the Official Spokesperson of the Foreign Ministry Lulwa al-Khater said that "Eastern Ghouta is one of the de-escalation zones, and these operations could hinder international efforts to reaching a political solution."
Five civilians were killed and another 18 wounded in central Mali when their passenger vehicle struck a landmine, the local governor said on Saturday, two weeks after 26 travellers died in a similar incident ...
Four days of ferocious Syrian government raids on the rebel-held enclave of Eastern Ghouta have killed more than 200 civilians, a war monitor said on Thursday.
The stark warning from World Health Organisation, Unicef and World Food Programme came 10 days after the Saudi-led military coalition shut down Yemen's sea and air ports.
At least 75 civilians were killed in an Islamic State group car bombing that struck a gathering of people displaced by fighting in eastern Syria, a monitor said on Sunday.
Syria's war killed at least 3,000 people including 955 civilians in September, the Syrian Observatory for Human Rights monitor said Sunday, in the deadliest month of the conflict this year.