Venezuelan opposition politician Juan Pablo Guanipa has returned home after being captured by security forces on Sunday - but is under house arrest, his son has said.

Ramón Guanipa said while his family was "relieved", his father remained "unjustly imprisoned".

The country's opposition leader María Corina Machado said on Sunday that Guanipa had been taken in the capital Caracas by "heavily armed men". It came hours after Guanipa and other political prisoners were released.

Venezuela's Interior and Justice Minister Diosdado Cabello later said "a person" was rearrested "for violating the conditions under which he was released".

"Some politicians believed they could do whatever they wanted," Cabello added on Monday.