Kolkata: Two nursing students, allegedly seen in a video mercilessly beating puppies to death in a state-run medical college and hospital, were arrested on Tuesday after a marathon interrogation, police said. The two nursing students -- Moutushi Mondal of the first year and Shoma Burman of second year -- of Nil Ratan Sircar Medical College & Hospital were identified from the video, a hospital official said.

"We identified nursing students -- Moutushi Mondal of the first year and Shoma Burman of the second year -- seen in the video. They were interrogated and the probe is still going on," Dwaipayan Biswas, NRS Medical College and Hospital deputy superintendent heading the probe said. A security guard was also interrogated.