Security forces also made fresh arrests overnight over the attacks, as the government faced pressure over its failure to act on intelligence warnings about possible bombings.
Recriminations have flown since suicide bombers blew themselves up in luxury hotels and churches packed with Easter worshippers on Sunday.
The president has asked the police chief and top defense ministry bureaucrat to step down, though neither has done so yet.
Overnight, security forces using newly granted powers under the country’s state of emergency arrested 16 more suspects in connection with the attacks.
Police have so far arrested 75 people but tensions remain high with several suspects unaccounted for.
A senior Catholic priest told AFP that all public services were being suspended and all churches closed “on the advice of security forces.”
Private services for burials will still be carried out, but no public masses are scheduled.