LIB reported that the man at about 11am got to the bridge, removed his clothes and then jumped into the Lagoon.
Passersby searched his pocket and discovered his phone and two ATM cards.
They called a lady on his phone who said she is his wife.
Officials of the Lagos State Waterways Authority (LASWA), Lagos State Emergency Management Agency (LASEMA), Marine Police and other stakeholders are already at the scene.
As at this moment, the respective agencies are still searching for the man.