A 55-year-old woman, arrested for alleged possession of heroin, committed suicide inside the police station cell at Khawzawl town in Champhai district on Mizoram-Myanmar border this morning.
Police said the woman hung herself from the bar of her cell with a blanket.
She was arrested last evening while returning from Champhai town for possessing 14 gm of heroin, reportedly smuggled from across the international border, police said.
The woman had been arrested earlier too for possessing cannabis.