Armed men have stormed a television and radio station in the eastern Afghan city of Jalalabad, according to reports. A number of gunmen engaged in a firefight with security forces at the Radio Television Afghanistan on Wednesday (17 May).

"We can confirm that a number of insurgents have entered the building," provincial governor Attaullah Khughyani was quoted by Reuters saying. "Who they are, and what their target is, is still not clear."

He added there were at least three attackers. Two of whom blew themselves up and the third one was still fighting with security forces.

Jalalabad is the capital of Nangarhar Province, on the border with Pakistan. Both Isis and the Taliban terror groups are present in the area.

Last month US forces dropped what was deemed as the biggest non-nuclear bomb ever used in a conflict in Nangarhar, killing at least 36 Isis fighters.

Militants that aim to topple the West-backed governement in the capital Kabul have carried out several attacks this year. In April, some 10 Taliban militants disguised as military personnel killed at least 140 soldiers during an attack at a military base in Mazar-i-Sharif, the capital of Balkh Province.

The attack took place just weeks after Isis militants disguised as doctors stormed the country's largest military hospital in Kabul killing at least 50 people.