India, May 6 -- Punjab was placed on high alert following two back-to-back explosions outside high-security installations in Jalandhar and Amritsar within a three-hour window on Tuesday night.

The National Investigation Agency (NIA) and central forensic teams have launched a coordinated probe into the incidents, which mark the third major blast in the state within 10 days. The first explosion on Tuesday occurred around 8pm outside the Punjab Frontier headquarters of the Border Security Force (BSF) in Jalandhar, involving a parked Honda Activa scooter. The high-intensity blast shattered windowpanes and scattered debris across a busy area, though no casualties were reported.

At 11.15pm, a second blast rocked the Khasa cantonment area in A...