State Malaysian Maritime Enforcement Agency (MMEA) director Capt Abd Razak Mohamed said the incident occurred at KM8.5 of the Batu Maung-bound lane of the bridge at 4.40am on Monday (Nov 22).
"The agency activated a search and rescue (SAR) operation once we received information,” he said in a statement.
Abd Razak said that an MMEA boat was sent to the location to search for the man, adding that the operation is being assisted by the Fire and Rescue Department, the Batu Uban marine police and Civil Defence Force with a search area involving 22.42 sq nautical miles.
He said the 39-year-old man from Kuala Lumpur is believed to have abandoned his car and his personal belongings before the incident.
Abd Razak said a search and rescue base near the bridge has been set up and efforts to search for the man are ongoing.
Those suffering from problems can reach out to: Mental Health Psychosocial Support Service (03-2935 9935 or 014-322 3392); Talian Kasih (15999 or WhatsApp 019-261 5999); Jakim’s Family, Social and Community care centre (WhatsApp 0111-959 8214); and Befrienders Kuala Lumpur (03-7627 2929 or www.befrienders.org.my/centre-in-malaysia a full list of numbers and operating hours).