According to Ivan Perera, the director of Sri Lanka's Catholic schools, this is a precautionary measure that was taken in light of the current security situation in the country.
The Daily Mirror newspaper has reported earlier citing Sri Lanka's Education Ministry that all schools would be closed on Monday and Tuesday in the wake of the attacks.
Earlier the Sri Lankan government has confirmed the arrest of 24 persons and the involvement of the jihadist organisation National Thowheed Jamaath in Sunday's attacks on three Roman Catholic churches: St. Sebastian's Church in Negombo, St. Anthony's Shrine in Colombo and Batticaloa's Zion Church.
READ MORE: Moment Sri Lanka Church Exploded Captured on Camera (VIDEO)
In Colombo, three major hotels — the Cinnamon Grand, Shangri-La and Kingsbury — were also struck. Two other hotels, one in Colombo and another in Batticaloa, suffered extensive damage in the terror attack.
The attacks that occured on Easter Sunday killed at least 290 people and left about 500 others injured, including foreigners.