Two pedestrians were killed in separate incidents less than an hour apart in Queens early Sunday, one by a drunken livery driver and the other in a hit-and-run, police said.

Rohan Singh was crossing Liberty Ave. near 108th St. at about 3:15 a.m. in Ozone Park after leaving a bar when a driver plowed into him and kept going, police sources said.

Singh, 47, a construction worker who sends money back to his wife and teenage sons in his native Guyana, was taken to Jamaica Hospital, where he died.

Cops are looking for a black Nissan Maxima with front-end damage, sources said.

Singh’s family broke the news to Chanrooytie Arjun, his frail 70-year-old mother Sunday.

“That was her Mother’s Day gift,” said the victim’s devastated brother, Chateran Singh, 45. “She burst into tears.”

Arjun had planned on celebrating Mother’s Day with a meal of baked lamb with her children. Instead she wept on the couch as her three surviving children tried to console her.

“Of all her kids, she loved him a lot,” said Chateran Singh. “Whoever hit him, they should have come forward.”

Earlier in the morning, a 24-year-old man hailing a cab was struck by livery cab driver Avedis Sayesh at the corner of 46th St. and Greenpoint Ave. in Sunnyside about 2:35 a.m., police sources and witnesses said.

The victim, whose name was not released, was waiting for the light to change to grab a yellow taxi cab after a night out, according to a friend who was with him.

“I see the [livery\] cab coming at us very fast and I tried to push my friend back, but it was too late,” said Bernardo Reyes, 23.

“He was on the floor, his legs were broken, bleeding”.

Sayesh, 58, lost control of his gray 2003 Mercury Grand Marquis livery cab after clipping a parked box truck, police sources said. He careened onto the curb, slamming into the victim on the sidewalk, then side-swiped several more cars before coming to a stop in front of a flower shop.

“This guy was crazy, he was driving so fast,” Reyes said.

The victim, suffering head trauma, was rushed to Elmhurst Hospital but could not be saved, police said.

Charges against Sayesh include manslaughter and driving drunk.

bpaddock@nydailynews.com

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