MOSCOW, January 27. /TASS/. Russian President Vladimir Putin voiced condolences to Philippines President Rodrigo Duterte over a deadly terrorist attack in the country’s south, a telegram published on the Kremlin website on Sunday said.

"A crime committed against civilians who gathered for a church service is shocking by its cynicism and cruelty. I expect that its perpetrators and masterminds will get a punishment they deserve. I would like to confirm readiness for further building up cooperation with Philippine partners in the fight against all forms and manifestations of a terrorist threat," the telegram said.

Russia shares the grief of relatives and friends of those killed and wishes a speedy recovery for those injured, the president said.

The terrorist attack occurred on Sunday morning after a church service at the Jolo Cathedral in Sulu province. At least 27 people were killed in twin blasts, including seven military and 20 civilians, and another 77 were wounded.