COLOMBO: A minor explosion was reported on Thursday in Pugoda on the outskirts of the Sri Lankan capital Colombo, police said, adding there were casualties or damages in the fresh blast that came four days after the Easter Sunday bombings which killed 359 people.

The police said that explosion was reported in a garbage dump behind the Pugoda Magistrate's Court, reports the Daily Mirror newspaper.

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There were no other details of the blast.

In the Easter Sunday bombings, hundreds of others were also injured in what is being called as the bloodiest day in Sri Lanka since the end of the civil war a decade ago.

The Sri Lankan government has blamed a local Muslim outfit, National Thowheed Jamath (NTJ), for the deadly bombings.