Bangladesh has rejected the Islamic State group's claim that it was behind a bomb attack on thousands of Shiite Muslims in the nation's capital.

Home Minister Asaduzzaman Khan said Sunday that there was no evidence to suggest involvement by the IS and accused local banned Islamic extremist groups and an Islamist party for planning Saturday's attack in an attempt to destabilize the country.

Unidentified attackers hurled home-made bombs at Shiite Muslims gathered for a religious procession in Dhaka before dawn Saturday. A teenage boy died and more than 100 other people were injured.

The Islamic State group posted a statement online Saturday claiming responsibility for the attack, according to the SITE Intelligence Group, which monitors jihadi activities.