A two-year-old boy fell into a 150-ft borewell in a village near Agra and authorities launched a massive effort to rescue him but there were apprehensions that water might permeate into the narrow bore from a nearby pond.

Sonu fell into the borewell around 10 am (IST) while playing near his house in Tohra village near Shamsabad town, 26 km from Agra.

Agra SSP Raghubir Lal said the borewell is just one foot in diameter and it's almost impossible for a man to go down into it to bring up the boy, who is also too small to latch to a rope if it is lowered down.

Sonu is stuck below at about 60 feet of the borewell. Lal said a parallel well is being dug near the borewell so that the rescue team can get to the boy through a tunnel.

He said the boy's voice also could not be heard now nor was there any movement from him though he was found crying some 90 minutes after he fell into it.

Sonu has also not been responding to his mother who was being asked to call him.

Lal said since there was a pond near the site, it was feared that the level of the water in the borewell might increase.

There has been a number of such incidents of children falling into narrow borewells in recent times. In 2006, a kid named prince fell into a borewell which was two-and-a-half feet in diameter.

He was rescued after over two days of efforts, which were telecast live on almost all television channels.

About four months ago, a similar incident took place in another village of Shamshabad district when two-year-old girl vandana had fallen into a bore well and was rescued after over 26 hours of efforts.

Meanwhile the district authorities on Thursday said strict action would be taken against the Jal Nigam employees who had dug the bore well and left it open.

A team of doctors is also helping in the rescue operation and supplying oxygen to the child. Officials said, rescue operations, if needed, would continue all night.