Police have been trying to quell protests on Nelson and George Streets, following the shooting and wounding of a man there earlier today.
The man, identified as 35-year-old Akim Thomas, was shot around 2.30 Tuesday afternoon.
Residents squared off against the police following the shooting and lit debris in the roads in protest.
The protest action caused gridlock traffic in several parts of East Port-of-Spain.
Police say Thomas was shot during a dispute with another man over a woman.
However, the residents insist that the man who shot Thomas was a police officer.
Thomas was shot in his chest and was rushed to the Port-of-Spain General Hospital.