Sri Lankan police on Sunday reported there had been a seventh explosion, a few kilometres south of capital Colombo.
This comes after six explosions ripped through three churches and luxury hotels on Sunday, killing nearly 140 people.
Police say the latest explosion was at a hotel near the national zoo in Colombo.

Bahrain, Kuwait, Jordan face renewed Iranian attacks after US hits Iran's south
Lebanese army enters southern town after Israeli withdrawal, in first test of US-brokered deal
Kuwait lodges formal protest with Iran over tanker attack; ministry says power station fires contained
Russian attack kills three in Ukraine's Zaporizhzhia, officials say
French parliament backs social media ban for children under 15
