IN PICS | Bengaluru cafe blast, 4 injured

The blast, that took place at the bustling Rameshwaram cafe in Kundalahalli, injured four people, including a woman. (Photo | Allen Egenuse J)

The blast was caused by the setting off an improvised explosive device, said Karnataka Chief Minister Siddaramaiah.

Siddaramaiah said a man was seen on CCTV footage leaving a bag near the restroom at the cafe.

The incident took place on Friday afternoon at where a large number of customers were having lunch.

According to sources, one of the four injured individuals was a customer, while the others were employees.

The device was a low-power bomb and may not have been aimed at causing extensive fatalities, the CM said.

A bomb squad, forensic team and police reached the scene to collect evidence. According to sources, the entire area has been sealed and traffic restrictions in the area have been imposed.