India's Supreme Court has upheld the death sentence of a Pakistani militant convicted of murder and waging war against the state in the December 2000 attack on New Delhi's historic Red Fort.

Mohammed Arif, also known as Ashfaq, was found guilty in 2005 for his role in the attack, which left three people dead, including a soldier. He and five others sneaked into the monument and opened fire.

Arif, a Lashkar-e-Taiba militant, was given the death penalty by a trial court, a decision later confirmed by the Delhi High Court. The Supreme Court ruling was his last avenue of appeal.

The others charged in connection with the attack were given various jail terms.

The Red Fort is a palace built in the 17th century for Muslim Mughal Emperor Shah Jahan. The fort is now a symbol of India's independence. Many speeches and official pronouncements are made at its gates.