The provincial public health directorate confirms that 30 people have died in the attack and more than 60 others have sustained injuries.
Provincial governor’s spokesman Ataullah Khogyani had earlier said at least 19 people have died and at least 57 others have sustained injuries in the attack.
He said the wounded individuals have been shifted to the hospitals in Ghani Khel district and Jalalabad city.
However, a provincial council member says at least 40 people have died and dozens more have sustained injuries in the attack.
No individual or group has so far claimed responsibility behind the incident.