Police have shot and injured a man on Frederick Street next to City Hall.
The man has been rushed to hospital.
According to reports, the homeless man attempted to rob the occupant of a passing vehicle just after noon today.
He was confronted by police after an alarm was raised and police say the man turn and attacked them forcing them to open fire.
The man is said to be a former police officer.
He is being treated at the Port-of-Spain General Hospital.