At least 17 inmates were killed Friday in a Venezuelan prison riot, military authorities said.
At least 18 inmates died and 16 were injured in overnight clashes between prisoners in Honduras after fighting erupted at a jail in the northern port town of Tela, prison officials said Saturday.
More than 60 doctors have demanded urgent medical treatment for Wikileaks founder Julian Assange, according to British media reports.
A Brazilian drug trafficker, who had attempted to escape from prison disguised as his teenage daughter, was found dead in his cell on Tuesday, officials said.
Forty-five prisoners, all former militia fighters, have been transferred from a prison in southern DR Congo after a series of spectacular jailbreaks, officials said Saturday.
Seventy four people, including soldiers, were sentenced to life in prison by a Turkish court on Wednesday for their role in an attempted coup, the state-owned Anadolu news agency said.
Twenty-four prisoners and two guards were killed after dozens of inmates rioted at a maximum security prison in northern Tajikistan, security sources said on Thursday.
Nawaz Sharif and his daughter Maryam Nawaz have been held at a high-security prison in Rawalpindi since July 13 following their conviction on corruption charges.
Hanif Abbasi is seen as a strong candidate for the Pakistan Muslim League Nawaz (PML-N) in Wednesday's election.
The Spanish king's brother-in-law was jailed on Monday after losing an appeal against a graft conviction, the prison authorities said.