ISLAMABAD, March 27 (Xinhua) -- A Pakistan Taliban splinter group claimed responsibility for the deadly suicide attack in Lahore that killed over 60 people and injured over 300 on Sunday.

"We claim responsibility for the attack on the Christians as they were celebrating their religious festival," spokesman for the Tehrik-e-Taliban Pakistan, Jamaat ul Ahrar, Eshansullah Ehsan said.

"It was part of our annual martyrdom attacks we have started this year," Ehsan told the local media.

The operations codenamed "Saut-ul-Raad" will continue this year, the media quoted him as saying