This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

EAST HARLEM, Manhattan — A manhole explosion in uptown Manhattan wounded two people Saturday afternoon.

The blast happened on East 110th Street and Second Avenue around 2:30 p.m., the FDNY said.

“It sounded like a thunderbolt. ” said Jonathan Merino was a few stores down from the blast.

Two Con Edison contractors were making repairs inside the manhole when the blast occured. They received flash burns to the face and were conscious as they were taken to a nearby hospital.

Their conditions are unknown at this time.

Fire officials believe gas may have sparked the powerful bast.

“When we arrived they were on the sidewalk,” said FDNY captain Kenneth Winkler.

Con Ed released a statement saying the men received flash burns to their faces and were both taken to Harlem Hospital.

“You pray for their recovery as quickly as possible,” said Rosalind Briones, who lives in the neighborhood.

The Fire Marshall is investigating the exact cause of the blast.

This is a developing story. Check back later for updates.