A search continued Saturday morning for two teen boys who went missing while swimming in the waters off Jacob Riis Park in the Rockaways. They haven’t been seen since Friday night.

“It’s dangerous, dangerous waters, so it’s tough,” Anfisa Gordeev, a longtime Rockway resident, said.

Officials said the boys, aged 16 and 17, went missing after 6 p.m. Friday night — police were called when the teens did not return.

The FDNY arrived on scene first and deployed two divers, but took those divers out of the water because it was too dangerous, police said.

“The wave was extremely high, and it went on top of them and sucked them over,” Kaz Daughtry, NYPD Deputy Commissioner of Operations, said.

“Rip tides are things you can’t see, and you have to know what to do when it happens,” Brian Gleason, another Rockaway resident, said.

A multi-agency search operation, including the U.S. Coast Guard, NYPD and FDNY, worked around the clock to find the two boys. As of around 4:30 p.m. Saturday afternoon, the U.S. Coast Guard said it had suspended the search.

Police say the teens went into the water after lifeguards were no longer on duty.

“If you’re here when the lifeguards are here, it’s pretty safe, but you really have to be careful with the rip tides and the currents — it can be really dangerous,” said Christina Punzone, a Rockaway resident who says she goes in the water at the beach every day.

Amid a Heat Advisory, some New Yorkers were looking to cool down in the water. New York City Emergency Management Commissioner Zach Iscol urged New Yorkers to follow swimming safety guidelines.

“This weekend in particular there are advisories out there about increased potential for rip tides. So it’s really important that people follow the guidance. Swim where there are lifeguards,” Iscol said.

Longtime Rockaway community members said they worry since incidents like this happen frequently during beach season.

“The lifeguards can get off duty at 6 p.m. That’s kind of a known thing around here. I think there are signs posted as well. So, I think it’s just more about being mindful, and staying as vigilant as possible against the rip currents,” Gordeev said.

Red flags on the beach mark areas determined to be off limits for swimmers.