CHELSEA, Manhattan (PIX11) — An exchange of gunfire broke out between the NYPD and a pair of robbery suspects on a Chelsea street early Friday, according to police.

Plainclothes officers wearing NYPD windbreakers were on the job inside the Club Doux nightclub on West 21st Street near Sixth Avenue around 2:50 a.m. when a bouncer alerted them to a robbery in progress outside, authorities said.

When the officers tried to intervene, the suspects opened fire on them in front of the club, officials said. The officers returned fire, but no one was struck in the exchange, police said.

The duo fled in a light-colored sedan, and were being sought by police on Friday morning, according to authorities. A detailed description of the suspects wasn’t immediately available.

Sources said that officers were patrolling the area due in part to issues stemming from a local nightclub.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting crimestoppers.nypdonline.org, downloading the NYPD Crime Stoppers mobile app, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).