Leading Muslim Brotherhood figure Farid Ismail died in Aqrab prison on Wednesday “after Aqrab Prison administration refused him necessary medical tests and treatment”, the Brotherhood said in a statement.

Ismail was the head of the Committee on National Security Council the 2012 Parliament and was member of the Freedom and Justice Party’s Executive Office.

Aid was sent to him “successively over the past week to save his life” but efforts were “to no avail”, reported the Freedom for the Brave, an initiative that provides aid to detainees, on Wednesday.

“Although coup authorities deprived him of required medicines and tests, he continued his painful struggle against serious illness and did not bend or kneel to the cowardly jailers or the murderous putschists, and remained unwaveringly steadfast until his pure soul departed,” Mohamed Montaser, the Brotherhood’s media spokesperson said in a statement.

According to the official FJP page, Ismail was suffered a stroke in his detention.

Ismail was elected to parliament first in 2005 and then again in 2011. He was arrested in September 2013 following the military ouster of former president Mohamed Mursi and the crackdown on the Brotherhood.

Last July, Ismail was handed a seven-year jail sentence on charges of protesting, belonging to a “terrorist” organisation, withholding unlicenced weapons, among other charges.