Globo television reporter Guilherme Portanova arrives at television station after being released by kidnappers, Monday

A Brazilian television reporter has been freed nearly two days after being kidnapped by a criminal gang demanding improvements in the nation's prison system.

Globo television says reporter Guilherme Portanova was released in an upscale neighborhood of Sao Paulo overnight Monday.

He said he was not hurt and had been fed by his kidnappers.

Portanova and a technician for Globo were seized early Saturday by members of the First Command of the Capital gang.

The kidnappers released the technician Saturday and gave him a video tape, saying Portanova would be freed only after the video was broadcast.

Globo television aired the video, in which masked gang members displayed weapons and criticized the nation's overcrowded prison system.

The gang is blamed for a series of attacks on police and government buildings since May.