65-year-old Erol Dogan suffered a heart attack on the 7th day of the ‘March of Justice’, a 250-mile walk the main opposition Republican People’s Party (CHP) started against the government’s post-coup rights violations.

Dogan was taken to Abant Izzet Baysal University’s hospital for treatment. According to media, his medical condition is good.

Started a day after the arrest of CHP deputy Enis Berberoglu, the protest is expected to last some 23 days, covering a 250-mile distance from Ankara’s Guven Park to Maltepe district of Istanbul.

Three days ago, Hasan Tatli, a 69-year-old marcher, died of a heart attack during the walk.

Holding a white banner that reads “justice” in red letters, CHP leader Kemal Kilicdaroglu told media on Thursday that the group is marching in support of those who had been unjustly included in the government’s post-coup purge.

Turkish government detained more than 120,000 people and arrested over 50,000 in the aftermath of the July 15, 2016 coup attempt. Meanwhile, some 130,000 people have lost hteir jobs over coup charges.