The death toll in the collapse of an under-construction 11 storey building near suburban Porur rose to 17 even a woman was pulled out alive with head injuries on Monday morning.

The death toll stood at 17 on Monday, DIG (South), National Disaster Response Force (NDRF), S.P. Selvan, said.

He said rescue operations were on in full swing though there were intermittent rains.

Meanwhile, a woman was pulled out alive this morning from under the debris of the collapsed structure.

Meenammal of Vizianagaram in Andhra Pradesh was admitted to Sri Ramachandra Medical University with a head injury, hospital spokesperson T.G. Nallamuthu said.

The building had collapsed on Saturday evening, with about 50 people feared trapped inside. Six persons, including two owners and two engineers, had been arrested under various sections of the IPC.