SEOUL: Hundreds of demonstrators on Saturday called for the immediate release of South Korea's ousted president Park Geun-Hye whose corruption trial has been put on hold following mass resignations by her lawyers, reports AFP.

Park's trial was put on hold Thursday after her lawyers resigned in protest over what they called biased proceedings following a court decision to extend her detention warrant for another six months.

Park condemned the trial as "political revenge" in her first public statement since she was arrested, while her lawyers protested over the extension of the warrant, saying that the principle of the presumption of innocence was "collapsing".

A crowd of some 1,000 pro-Park protesters marched through Seoul for more than an hour, chanting slogans and waving South Korean and US flags.