Lashkar Gah (Afghanistan): Afghanistan has deployed hundreds of commandos backed by Nato air strikes in Lashkar Gah to flush out Taliban insurgents from the strategic city after the militants killed 14 people in a coordinated attack, officials said on Tuesday.

The assault on Monday marked the militants’ latest attempt to seize the provincial capital of Helmand, underscoring unravelling security as the insurgents expand their foothold across the opium-rich province 15 years after the US invasion.

“More than 300 commandos ... have been deployed to the city to prevent Taliban advancement,” said Abdul Jabar Qahraman, government special envoy for security in Helmand.

Provincial spokesman Omar Zwak told journalists the commandos were sent from Kabul and neighbouring provinces to launch a “clearance operation” in Lashkar Gah after the attack, which killed 10 policemen and four others.

“Soon the security forces will clear the whole city from Taliban,” Zwak said.

“US enablers are in the area and will support as needed. Yesterday there were two air strikes in Helmand, both of these were in support of ANDSF (Afghan National Defence and Security Forces) strategic operations,” a Nato spokesman told journalists on Tuesday.

The Taliban have waged an insurgency against the western-backed Kabul government since being toppled from power by a US-led invasion in 2001. They have intensified attacks across the war-torn country in recent months, pressuring Afghan forces stretched on multiple fronts.

Around 30,000 people have been displaced in Helmand in recent weeks, mostly fleeing to Lashkar Gah, a city practically besieged, with roads from neighbouring districts heavily mined by the insurgents.

The intervention in Helmand has fuelled the perception that foreign powers are increasingly being drawn back into the conflict as Afghan forces struggle to rein in the Taliban.

Monday’s early morning assault also underscored the Taliban’s sustained push into urban centres, coming a week after the militants briefly stormed into Kunduz in the north before being repelled by Afghan forces.

The attack began with a car bombing in an attempt to break through the security belt in Lashkar Gah and enter the city, according to officials and local residents.

Mohammad Radmanish, a defence ministry spokesman, said security forces had managed to repel the attack and push back the insurgents, but feared they would return.

“We have enough forces on the ground now. Afghan air force and Nato’s air support is also helping our forces,” he said.

On Saturday, General John Nicholson, the Nato military commander in Afghanistan, flew with the Afghan defence minister to Lashkar Gah to assure provincial elders that the city will not fall.

The Taliban effectively control or contest 10 of the 14 districts in the province, the deadliest for British and US troops over the last decade and blighted by a huge opium harvest that helps fund the insurgency.

In August Washington deployed some 100 troops to Lashkar Gah, the first major US deployment to the city since foreign forces withdrew in 2014.

In recent months, the militants have attempted to overrun other provincial capitals, from Kunduz and Baghlan in the north to Farah in the west, but Afghan forces have managed to repel the attacks.

Last week, the militants launched an assault on Kunduz in northern Afghanistan briefly hoisting their flag in the central square of the city, before they were flushed out by Afghan forces backed by Nato, a year after the city fell to them in their biggest victory since the 2001 invasion.

Nato officially ended its combat mission in December 2014, but US forces were granted greater powers in June to strike at the insurgents as President Barack Obama vowed a more aggressive campaign.