An abandoned house near the canal was also reportedly used as a hideout by the suspects .

The crowd laid siege to the hideouts around 7 am after a highway sweeper with the Lagos State Waste Management Agency raised the alarm .

It was learnt that the official had heard the voice of a woman calling for help from the canal .

A suspected kidnapper, who fled from the canal , was caught by a mob and set ablaze before the arrival of the police at the scene .