A Polish professor jailed in Iran after being accused of spying has been released, a Polish Foreign Ministry spokesman said on Twitter on January 12. Maciej Walczak, a professor at Nicolaus Copernicus University in Poland, is safe and sound with his family, ministry spokesman Lukasz Jasina said without offering more details. Walczak was detained by Iran last September along with two colleagues, who were later released. Earlier this week, Iran sentenced a Belgian aid worker to 40 years in prison and 74 lashes for "espionage." Brussels has called the charge "fabricated." (RFE/RL’s Radio Farda)