Within six minutes, FDNY crews arrived at the scene of a warehouse on 63rd Street in Sunset Park to discover three e-bikes on fire inside a storage unit.

These people man, they shouldn’t have no bikes in there,” said Dennis Gentile, a neighborhood resident. “All the electrical bikes and motorcycles should be off city limits — people are getting hurt!”

Gentile said he noticed smoke coming out of a storage warehouse at around noon Sunday. It was just down the block from his apartment by 5th Avenue.

“I was just doing the garbage, came out and saw smoke,” Gentile said. “I watched them cut it... and all the smoke came out!”

Officials said while the sprinkler system did go off, that water alone wasn’t enough to put out the flames.

“When the fire suppression systems were designed a long time ago, no one had e-bikes or e-batteries in mind,” said Michael Meyers, FDNY assistant chief. “So what happens is these fire suppression systems are not designed to put out enough water!”

Since the sprinkler system was overwhelmed by flames from the e-bikes, fire officials said it took copious amounts of water to put out the 3-alarm fire at the storage warehouse. They also said one firefighter, whose mask came off, suffered smoke inhalation and had to be taken to a nearby hospital for treatment.

“Thank God for the fire department and the great work of engine 241 and Ladder 109 coming in here and getting on this right away. Thanks also to our units for doing an incredible job of coming in here in a very hazardous building,” Meyers said. “In one of these storage units, you never know what you’re going to encounter behind those closed doors.”

The FDNY said the e-bikes that were on fire were among nearly 300 e-bikes and micromobility devices discovered in two storage units.

The department told NY1 that this year alone, the numbers through Oct. 16 show e-bikes started 214 fires and were the cause of 116 injuries.

The cause of Sunday’s fire remains under investigation.