Rafael Tudares, the son-in-law of Venezuelan opposition candidate Edmundo González, has been released from prison, his wife has said, more than a year after he was detained as part of a crackdown on Maduro government critics and their relatives.

Mariana González said her husband had returned home after 380 days of unjust and arbitrary detention.

Tudares is one of more than 150 detainees who have been released since the US military seized Venezuelan leader, Nicolás Maduro, in a nighttime raid and took him to New York to stand trial on drug-trafficking charges.

An NGO lobbying for the release of Venezuelan political prisoners warns that 777 still remain behind bars, with tensions remaining high in the country under the leadership of Maduro's former vice-president, Delcy Rodríguez, who now acts as the president.

Mariana González expressed gratitude for the support received during her husband's ordeal but also reminded others of the many families still waiting for justice and the return of their loved ones, who have been forcibly disappeared, arbitrarily detained and unjustly locked up.