Taking full responsibility for the Metro bridge collapse in Delhi, in which 6 people were killed and 13 injured, on Sunday DMRC chief E. Sreedharan submitted his resignation. “Technically, someone else should take the responsibility but I have decided to quit. I am sending my resignation to Chief Minister Sheila Dikshit,” said the DMRC chief in a press conference. Delhi Government however said it will not take any “hasty decision” on resignation of the Delhi Metro chief, PTI reported. Earlier in the day, six persons, including an engineer, were killed and 13 others injured when an under-construction over-bridge of the Delhi Metro collapsed, in the second such incident in eight months. The accident took place as one of the pillars of the bridge gave in when a launcher was being erected close to Lady Sriram College in Dhamrudpur in Lajpat Nagar at around 5am. Two of those injured are in serious condition, said Anuj Dayal, the spokesman for the Delhi Metro Rail Corporation that is expanding the city's 6-year-old metro rail system. He said three workers died at the accident site and two are critical. Those killed and injured were laborers working on the bridge, Police spokesman Mohammad Iqlaq, said. He said the cause of the accident was not yet known. Rescue crews were still working to see if any others are trapped under the rubble.