Chennai, Aug. 9 -- Three workers were killed and a woman was injured in an explosion at a private cracker manufacturing unit at Vijayakarisalkulam village in the southern Virudhunagar district of Tamil Nadu today.

Reports received here said the deceased included two women.

One woman was injured in the blast, which occurred due to friction while handling chemicals for making crackers, and was shifted to hospital for treatment.

Meanwhile, in a statement, Chief Minister M K Stalin expressed deep anguish and shock over the incident and announced a solatium of Rs four lakh each to the families of the deceased.

He said the blast took place at around 1130 hrs in the private cracker manufacturing unit when the workers were engaged in making...