New Delhi: A 60-year-old security guard was beaten to death allegedly by a labourer in southeast Delhi's Kalkaji area, police said today.

Nanhe, who was a security guard at an under-construction building, was murdered with a hammer while he was sleeping by accused Sanjiv Rana on Tuesday night, police said.

After the attack, Nanhe's colleagues held Rana and handed him over to police. During interrogation it emerged that Rana had an ongoing dispute with the victim as he did not allow the accused to take shelter in the building, police added.