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May 17, 2017, 11:43 AM UTC / Updated May 17, 2017, 12:43 PM UTC

Five gunmen stormed the regional offices of Afghanistan’s state-run TV channel Wednesday, officials said.

Afghan soldiers capture a suspected militant after the Jalalabad attack. GHULAMULLAH HABIBI / EPA

Militants attacked the offices of RTA in Jalalabad, regional government spokesman Attaullah Khogyani told NBC News. Four were killed but one was captured alive, he said.

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Two others were killed in the attack and another 14 people were wounded, according to Khogyani.

Interior Ministry spokesman Najib Danish said the attack began with an explosion, followed by a gunbattle with security forces.

The state media building is close to the governor's compound and a police station.

It was not immediately clear who was behind the attack.

Both the Taliban and an ISIS affiliate are active in Nangarhar, a mountainous province that borders Pakistan.

However, the Taliban denied any involvement.