The Tamil Nadu police has registered an FIR against three journalists after they reported of witnessing a 'mysterious explosion' in the ISRO campus in Tirunelveli. A number of television channels aired clips that showed visuals of smoke rising from the location of the ISRO campus.

The police have denied any such incident at or near the high-security complex.

Meanwhile, the Central Industrial Security Force guarding the ISRO facility filed a complaint against the journalist for 'spreading rumours'.

Tirunelveli SP P Arun Sakthi Kumar told Times Of India that it was a piece of limestone rock that had slipped from Kurava Malai, a hillock about 15km from the ISRO unit. "Since there was limestone dust on the slope, the slipping rock resulted in a cloud of dust," he said.