Vladislav Kovalyov, one of the two men sentenced to death in Belarus for bombing a metro station in the capital, Minsk, has appealed to President Alexander Lukashenko for clemency.
“In the appeal, he wrote he was not guilty of this heinous crime,” his mother, Lyobov Kovalyova, told reporters on Friday.
The 11 April attack killed 15 people and injured hundreds of others.
Kovalyov, 25, was found guilty of “assisting in an act of terrorism,” and Dmitry Konovalov, also 25, was convicted of carrying out the attack.
The Supreme Court said on November 30 the two men will be executed by firing squad.
About 160,000 people have signed a petition to President Lukashenko not to execute the men, Amnesty International researcher Heather McGill told a news conference in Minsk on Friday.
Belarus is the only country in Europe which still uses capital punishment.