A street in Brisbane city has been shut down and a bomb squad sent in after two "suspicious" vehicles were reported to police.

A Queensland police explosive operations response team closed off Felix Street, outside commonwealth offices, just after midday.

Police have closed Felix Street, Brisbane City. Credit:Jamie McKinnell/Twitter

The specialist police were doing an inspection on the car.

It is understood the vehicles had been parked on the busy inner-city street for several days.