Jammu: Around 50-60 heavily armed militants belonging to the Pakistan-based dreaded terrorist outfit Lashkar-e-Toiba (LeT) are believed to be waiting across the Line of Control to infiltrate into the Indian side even as the security forces have tightened vigil along the International Border, sources said on Thursday.

"There are about 50-60 terrorists at the launch pads on the other side (PoK) waiting at the international border," Rakesh Sharma, Inspector General of Border Security Force (BSF) said while talking to reporters today.

Sharma further added that security measures have been intensified on the Indian side to check any untoward incident.

On Wednesday, Lt Gen Subrata Saha, the General Officer Commanding of Srinagar-based 15 Corps, had warned that at least 150-170 militants trained in Pakistan are waiting to cross into the Indian side of the border.

Lt Gen Saha said that heavy snowfall and inclement weather in the region is further aiding these militants to slip into the Indian side.

It is alleged that Pakistan has been violating ceasefire along the International Border and engaging the security forces in cross-border firing in an attempt to help these militants to infiltrate into the Indian side.

The security forces have recently foiled several attempts by the Pakistan-trained militants to sneak into the Kashmir Valley by taking advantage of inclement weather and heavy snowfall in the region.

Lt Gen Saha had sometimes back warned that there are around 200 heavily armed terrorists across the Line of Control waiting to infiltrate into the Kashmir Valley.

United Nations, Intelligence Bureau, Military Intelligence and various other agencies have also warned of possible terrorist attack by Pakistan-trained terrorists during United States President Barack Obama's visit to India on January 26.

In view of the intelligence inputs provided by various agencies, the Home Ministry has reviewed the security arrangements in and outside vital installations and important public places.

The Home Ministry has also asked the security forces to be on high alert and increase surveillance.