DHAKA- Bangladesh's Supreme Court has upheld the death sentence given to a leader in the country's largest Islamist party.

Mohammad Kamaruzzaman, assistant secretary general of Jamaat-e-Islami, was found guilty of genocide and torture by a special war crimes tribunal in May last year.

The same tribunal sentenced party Chief Motiur Rahman Nizami to death last week for war crimes. Another leader, Mir Quasem Ali, was also given the death penalty on Sunday.

Kamaruzzaman, 62, is due to be hanged for atrocities committed during the country's war of independence from Pakistan in 1971. Among his crimes was a mass killing of at least 120 unarmed male farmers in the northern border town of Sohagpur.

The convictions of Jamaat-e-Islami leaders have outraged supporters, who have conducted a three-day strike, due to end on Monday, in protest of Nizami's sentencing last Wednesday.