The development comes ahead of Prime Minister Narendra Modi's visit to the state on May 19.
According to the officials, the security forces will continue to conduct 'cordon and search operation' for the next three to four days.
"BSF troops saw a movement of (five) suspicious persons little away from the border fence. Based on that, a high alert was sounded and searches are being conducted," Kathua Superintendent of Police (SSP) Sridhar Patel told PTI.
All the troops have been alerted and the search operation will go on for the next three to four days, he said, adding additional check points have been setup and highway has been monitored.
The security installations along the highways in Kathua, Samba and Jammu districts have been put on alert.
The fencing is intact and there is no breach in the border fencing, the SSP said.
They are believed to be part of the group that has infiltrated from Pakistan into this side in Tarnah Allah between the Londi and Bobbiyan Border Out Posts (BoPs), according to reports.
IGP Jammu S D Singh Jamwal said that an alert has been sounded in the area since 12 am after suspicious movement.
According to a senior BSF official, suspicious movement of at least four to five people, suspected to be terrorists, was noticed along a stream between Londi and Bobbiyan in Tarnah Allah area of Hira Nagar sector shortly after midnight last night.
The officials said security installations along the Jammu-Pathankot highway especially in Kathua and Samba have been put on high alert while check posts have also been set up at various places as a precautionary measure.
The local residents have also been alerted and asked to report any suspicious movement to the nearest security installation.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)