Ottawa police are on the lookout for a yellow racing motorbike with black stripes and a Quebec license plate after it clipped an officer who was directing traffic and broke his arm.

It happened at a construction site near Eagleson and Cope roads just before 1 p.m. Tuesday.

Two officers were directing traffic at the site when they noticed a motorbike heading toward them at a high rate of speed, according to police spokesman Const. Marc Soucy.

The two officers motioned for the motorcycle to slow down, but it dodged the first officer and clipped the second officer, breaking his arm, Soucy said. The injured officer was taken to hospital and has since been released.

The motorbike did not stop, Soucy said.

It's described as a yellow racing motorbike with black stripes and a Quebec license plate.