With factional fighting going on in west Afghanistan, the US military Monday expressed readiness to get involved in the worsening security situation in the region, a US military spokesman said Monday.

"If diplomacy does fail, we would take appropriate action," Scott Nelson told journalists here without elaboration.

His comment came after the Afghan central government decided to deploy two battalions or 1,500 troops of the newly US-trained Afghan National Army (ANA) to the conflict-hit western region where supporters and opponents of Herat's governor Ismael Khan have been engaged in a severe fighting since last weekend.

"We are concerned about it. The coalition does have plans to support the national government," he added. "The coalition and ISAF are here to support the national government in leading the Afghan nation."

The coalition and International Security Assistance Force (ISAF)on Monday transported 440 ANA soldiers and 29 US advisors to Shindand airport, where the clash began, to help the central government restore control of the region.

More than 20,000 US-led coalition troops in coordination with 7,000-strong NATO-led International Security Assistance Force (ISAF)have been tasked to ensure durable peace and security in the post-war Afghanistan ahead of October election.

Source: Xinhua