New Delhi: West Bengal Chief Minister Mamata Banerjee pn Tuesday expressed shcok and grief over the killing of five laborers in Jammu and Kashmir’s Kulgam, in what is being termed as the biggest terror attack in the valley post Article 370 revocation.

Four of the five labourers who belonged to Murshidabad town in West Bengal, were shot dead by the unidentified terrorists, while one was wounded who later succumbed to the injuries.

Banerjee said that all necessary help will be extended to the families of the deceased.

"We are shocked and deeply saddened at the brutal killings in Kashmir. Five workers from Murshidabad lost their lives. Words will not take away the grief of the families of the deceased. All help will be extended to the families in this tragic situation," Banerjee tweeted.

"Unknown terrorists shot dead 5 laborers and injured 1. The injured was evacuated to the district hospital in Anantnag. All the labourers were from Murshidabad, West Bengal," the CRPF said after the attack

"Troops of 18 Battalion Army and JKP reached the spot and cordoned off the area and a search operation has started," the CRPF said.

The attack happened on a day a delegation of parliamentarians from the European Union is visiting Kashmir to talk to locals and ask them about their experience after the abrogation of Jammu and Kashmir's special status under Article 370 of the Constitution in August.

Since the Centre's decision on Article 370, terrorists have been targeting truckers and labourers, mainly who have come to the Valley from outside Kashmir.

On Monday, a trucker from Udhampur district was killed by militants in Anantnag, police said. This was the fourth truck driver to be killed by militants since August 5.

On October 24, terrorists killed two non-Kashmiri truck drivers in Shopian district.

On October 14, two terrorists, including a suspected Pakistani national, shot dead the driver of a truck having Rajasthan registration number and assaulted an orchard owner in Shopian district. The driver was identified as Sharief Khan.

Two days later, Punjab-based apple trader Charanjeet Singh was killed and Sanjeev injured when terrorists attacked them in Shopian district.

The same day, a brick kiln worker from Chhattisgarh was shot dead by militants in Pulwama district.

(additional inputs from PTI)