Officials in New York City are investigating the murders of three gay men which occurred within a two-week time span.

Fifty-three-year-old David Rangle was found stuffed under a couch in his Jackson Heights apartment on January 26.

Less than a week earlier, Charles Romo, 48, was murdered in his Hamilton Heights, Harlem apartment. Police said they believe Romo allowed two men into his home. He was found tied up and beaten in his underwear.

The latest victim, Joseph Benzinger, 54, was found dead on February 9 inside a hotel room at the Crown Motor Inn, which rents rooms by four-hour blocks.

All of the men were in their 40's or 50's and strangled to death. Police believe all the victims met their attackers online, CBS New York reported.

New York Deputy Commissioner Paul Browne told reporters on Tuesday that “It appears that the cases are not related with different suspects involved.”

“There are people who have been known to go online and prey on LGBT people because they think we're a vulnerable community,” said City Council Member Daniel Dromm.

Officials urged the community to take extra precautions when dating online.

“Let people know, 'I'm going to be hooking up online tonight,” said Ejeris Dixon, deputy director of the Anti-Violence Project. “[Ask them] can you call me in a couple of hours?' And it's that simple.”

Dixon also stressed it was important to meet in a public place.