India, Dec. 15 -- Keys belonging to power backup units of 68 traffic signals in and around Sector 40 were stolen on Saturday during a maintenance drive, police said. An FIR has been registered, and an investigation is underway, they added.

The theft occurred around 1.40pm near a T-point in Sector 40 during routine signal maintenance. The stolen keys were used to open inverter boxes housing the signals' power backup units. A senior official at the Sector 40 police station said a complaint was received late Saturday night from the private maintenance firm. "After thorough internal inspections by the firm's engineering teams, they reached out to us for help. Officers at police enforcements have been instructed to stay alert to any suspiciou...