A 25-year-old man was seriously injured by a homemade firecracker during Orthodox Easter celebration in Kalamata early on Sunday.
The man was taken to the hospital, where doctors had to amputate both of his arms. He also lost his eyesight during the blast.
Another 25-year-old man that was near him also suffered a light injury.
A few hours earlier, two men were killed by electrocution in a village near Kalamata when their firework hit some power cables.
The two men, aged 23 and 26, were holding a cable attached to the firework.