BENGALURU: Ramamurthy Nagar police are trying to trace two people who attempted to rob an ATM on Monday morning. Around 5 am, a security guard inside an HDFC Bank ATM on the service road near Ramamurthy Nagar woke up to some sound inside the kiosk. Another guard, who was in the basement, also heard the sounds and ran upstairs, only to find the night shift guard grappling with two masked men. The duo managed to escape. The police were then informed about the incident. Police officials are questioning some usual suspects in, DCP (East) N Satheesh Kumar said. This is the second attempt to rob an ATM in a week.