Four unidentified armed persons allegedly looted Rs 40 lakh from a General Post Office in Jalandhar after tying two persons, including a security guard, in the wee hours on Thursday.
The incident occurred at around 4 AM when the guard, Ashok Kumar, heard some noise inside the post-office and was soon attacked by the four persons.
The armed men then tied him and another labourer present on the premises. They decamped with the cash kept in the strong room of the post office, Superintendent of Police S K Kalia said.
Kalia did not rule out the involvement of the employees of the post office in the robbery.
"We have asked the post office to provide us details of each and every employee who were on duty last night so that they can be questioned," Kalia said.
Senior Superintendent of Post N R Meena said there was no sign of a forced entry.
"I got the information at around 7 AM and accordingly police was informed about the incident," he said, adding that as the cash was to be distributed to other post offices it was kept in a box, outside the main safe, which was taken by the armed men.
An alert has been sounded in and around the city to nab the culprits, Kalia said.