One person was killed and another seriously injured in an explosion on a motorcycle at Margao in Goa late on Friday night.

Police say the initial information indicates the blast could have been on account of accidental explosion of gelatin sticks or crude bombs stored in the boot of the scooter.

The person killed, Malgunda Patil, is believed to be associated with a Hindu right-wing group, Sanathan Sansthan. Another person belonging to this group has been detained.

Apparently, the group was against celebrating Naraka Chaturdasi, which comes a day before Diwali, where effigies of the mythological demon Narkaasur are burnt.

There is a red alert in the whole of Goa. Margao is Chief Minister Digambar Kamat's constituency.