Madhubani, May 27 (PTI) Drone-like objects were spotted over the India-Nepal border in Bihar's Madhubani district, following which an investigation was started, police said on Tuesday.

According to the Sashastra Seema Bal (SSB) personnel posted at the Kamala border outpost (BOP) area in Jaynagar, some "mysterious drone-like illuminated objects" were sighted entering Indian airspace from Nepal on Monday night, Superintendent of Police Yogendra Kumar said.

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"They immediately informed the Indian Air Force authorities in Darbhanga and Delhi. The district police were also informed. An investigation has been started," he said.

"The glowing tiny objects were observed for about half an hour, and they finally went back to the Nepal side. The district police are already on alert and maintaining strict vigil in coordination with other agencies," he added.

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Police stations along the India-Nepal border have been instructed to intensify patrolling, the SP said.

Bihar shares a long and porous border with Nepal, which has often been used by illegal immigrants from other countries to sneak into the Indian territory.

Security has already been heightened across the state due to Prime Minister Narendra Modi's two-day visit, starting May 29.

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)