The News Minute| June 28, 2014| 11.30 pm IST| Updated June 29, 2014| 10.30 am ISTNew Delhi Ten people were killed and two others injured Saturday in one of the worst building collapses in the capital in recent times when a four-storey structure came crashing down. The collapse of the four-decade-old structure at 9 a.m. in north Delhi's Inderlok area was triggered by an ongoing construction on an adjacent plot which apparently weakened its foundation."Ten people have been killed and two injured in the incident. We have registered a case against the contractor (Javed) for causing death by negligence," said a police official. Some unidentified people were also booked. The injured were admitted to Bara Hindu Rao and Acharya Shree Bhikshu hospitals.Union Home Minister Rajnath Singh expressed grief over the loss of lives. "I pray for speedy recovery of those injured in the accident," Singh wrote on his twitter handle. Aam Aadmi Party chief and former Delhi chief minister Arvind Kejriwal visited the site. The AAP alleged that "the nexus between the builder mafia and the Municipal Corporation of Delhi is solely responsible" for the tragedy.This was the fourth such incidents in the national capital in the past nine months.North Delhi Municipal Corporation Mayor Yogender Chandolia told IANS: "The poor quality material used to build the house weakened its base and it collapsed due to ongoing construction on an adjacent plot."From one family, Rubina, 30, her two sons -- Asif, 10, and Rehan, 7 -- and daughter Aadiba, 14, died while her husband Abdul Rashid, 38, was injured. In the second family, Sahana, 28, lost her life along with her son Abdul Aadil, 7, and daughter Saba, 5, while her husband Mohammad Naim, 39, was hurt.For another resident Naim, it was a shock when his father Mohammad Sharif, a tailor, broke the news to him with a choked throat: "My son, Sahana (Naim's 28-year-old wife) is no more." Tears rolled down Naim's face when he was further informed about the death of his children Abdul Aadil, 7, and Saba, 5. "He fell unconscious and said 'Allah, why I am alive!'," said a witness.Meanwhile, North Delhi Municipal Corporation Commissioner Praveen Gupta ordered the suspension of the area assistant engineer and junior engineer.ChennaiEight people were killed and 50 others trapped when a 11-storey under-construction building collapsed here Saturday evening. Rescue operations is till going on at the site as many are believed to be trapped inside the debris.According to officials, 11 people trapped under the debris were rescued of which one person died. The other 10 have been admitted in a nearby hospital of which the condition of one is said to be serious. The accident took place at Moulivakkam near Porur area here.Police have two people in custody in connection with the collapse.Most of the people who were trapped under the debris are said to be construction workers from Andhra Pradesh and some might have taken shelter in the building as it was raining at the time of the collapse, people in the area said.Rescue efforts were hampered early due to power cut and rains. However, officials have made arrangement for lights to facilitate the rescue work.In a statement here, Tamil Nadu Chief Minister J. Jayalalithaa said a team from the National Disaster Management Authority has been sent to the accident spot to speed up the rescue efforts."Police have been ordered to take action against those who are responsible for the incident," she said.The residential project Trust Heights is being developed by Prime Sristi Housing Pvt Ltd. The project consisted of two 11-storeyed blocks - The Belief and The Faith.