KHARTOUM, June 15 (Reuters) - Sudanese authorities released opposition leader Sadiq al-Mahdi on Sunday, Sudan's State Minister of Information, Yasser Youssef, told Reuters.

Al-Mahdi, who was arrested in mid-May, was accused of undermining the constitution, a charge that could have led to the death penalty, after he said the government had committed violence against civilians in the Darfur region.

Minister Youssef said the release of al-Mahdi was done within a "legal framework" but did not give further details.

(Reporting by Khalid Abdel Aziz in Khartoum, Writing by Yasmine Saleh, Editing by Dominic Evans)

((yasmine.saleh@thomsonreuters.com)(+202 2578 3290))

Keywords: SUDAN OPPOSITION/