IT’S a shocking incident that beggars belief.

A two-week old boy reportedly died after being thrown from his mother’s lap while she was being raped on a bus.

The alleged offenders: the bus driver and conductor.

The gruesome incident happened in the Sheeshgarh village in India on Monday night while the woman was returning home from a family function at a nearby village, The Times of India reports.

The woman’s three-year-old daughter was also on board the bus and hid behind a seat as she watched the violent attack unfold.

Police said the men forced alcohol down the 28-year-old mother’s throat before raping her, leaving her so intoxicated she couldn’t remember the violent attack.

When the woman resisted, the men flung the baby boy and he died instantly.

Police said the woman’s daughter is the only witness they have.

“The incident took place when fellow passengers had left the bus,” Superintendent of Police (rural areas) Yamuna Prasad was quoted as saying in The Times of India.

When they finished raping her, the men dragged the woman off the bus unconscious and placed her and her dead baby’s body on the road next to the bus stop, police said.

It was at this point that the girl says she ran off the bus and hid until the men had left.

The three were discovered in the early hours of Tuesday morning by the woman’s husband and other locals who had come out to search for them.

The woman was taken to hospital where she is receiving medical attention.

Both men have been arrested and charged with gang rape and culpable homicide.

The attack is the latest in several recently reported cases of rape against women or children in India.

Earlier this week a 15-year-old girl died after being raped and set on fire in New Delhi.