Silchar/Aizawl, The Assam-Mizoram border trouble continued for the second day on Thursday as the agitators in southern Assam refused to withdraw their blockade of National Highway 306, the lifeline of Mizoram, demanding the withdrawal of its security personnel from Assam's territory.

Assam's Additional Director General of Police, Law and Order, Gyanendra Pratap Singh, who is camping in southern Assam since Wednesday, held a series of meetings to normalise the situation but despite his appeal, over a hundred people refused to withdraw their blockade at Lailapur, leaving more than 250 goods-laden vehicles stranded on the either side of the border.

Singh, after visiting the agitation site, told the media that the Assam government would approach the Centre to probe the October 22 bomb blasts in a school located at Khulicherra area near the Assam-Mizoram border.

"The blast at the school was possibly triggered by the miscreants to frighten the border residents. Senior police officials are closely watching the situation and the security along the inter-state borders was further tightened," he said.

"The demarcated inter-state boundary should be respected by everyone. Necessary statutory provisions are being exploited and interactions with the Central government are being done on a regular basis," he added.

The picketers were demanding withdrawal of Mizoram's forces from Assam's territory in Cachar and Karimganj districts.

"In the series of high-level meetings during the last two weeks, Mizoram officials had agreed to gradually withdraw their forces from the areas inside Assam territory. But, they are yet to withdraw," a senior Cachar district police official said.

Mizoram ferries all its essentials, food grains, transport fuel and various other goods and machines through NH 306 which connects Vairengte in its Kolasib district to southern Assam.

Festering since October 9, the situation along the 164.6-km Assam-Mizoram border took an ugly turn with around 20 shops and houses being burnt and over 50 people injured in the attacks and counter-attacks by people on either side on October 17.

Union Home Ministry's Joint Secretary (North East), Satyendra Kumar Garg had held a meeting with the Home Secretaries of Assam and Mizoram last week where it was agreed that both sides will maintain the status quo and hold regular talks to prevent any untoward incident.

After these meetings, over 300 stranded Mizoram-bound essential goods laden vehicles went to the neighbouring state.

Union Home Minister Amit Shah also spoke to Assam Chief Minister Sarbananda Sonowal and Mizoram CM Zoramthanga several times last week to defuse the crisis. Union Home Secretary Ajay Kumar Bhalla held a meeting, through video conference, with the Chief Secretaries of Assam and Mizoram.