Police in Sydney are still searching for groups of suspected gay-bashers who assaulted at least two gay men in the early hours of Sunday morning, just weeks before the city celebrates its LGBT diversity at the annual Sydney Gay and Lesbian Mardis Gras parade.

One of the victims, 22-year-old Dylan Souster, described two separate attacks he suffered in one night in detail to the Sydney Morning Herald.

Souster claims he was attacked and beaten unconscious first near his home in Waterloo, and again by a good Samaritan who initially tried to help him as he walked home. After the man discovered Souster had a boyfriend, Souster claims the man punched him in the face and called him "a queer."

Souster was on the street in the early morning hours because he and his boyfriend, 27-year-old Darren Hedderman, had had friends over to their apartment Saturday evening, and Souster was walking them downstairs to hail a cab.

"He walked up McEvoy Street a little bit and couldn't see them [their guests], so he turned around," Darren told the paper, indicating he only learned of the attack once his boyfriend returned to their apartment with a "swollen jaw and eye, lumps and cuts over his face, [and] a split lip and bruising over his body."

"As he turned around, somebody hit him, and the next thing he remembers is waking up in Waterloo Oval being kicked in the head. He doesn't know how he got to the oval. We don't know whether he was dragged there or whether he ran, he doesn't remember."

The SMH reports:

"They finally stopped kicking him in the oval and [Mr Souster] started to come home. He met a guy on the street and asked him for help, and the guy said 'Yeah, no problem, are you OK? What happened?" Mr Hedderman said.

"So the guy walked him all the way back to our apartment block."

At the apartment block, the man asked Mr Souster if he wanted him to call his girlfriend to take him upstairs. Mr Souster replied that his boyfriend was in their apartment, and he could go to him.

"And he said 'Oh you have a boyfriend, you're a queer', and he hit him in the face," Mr Hedderman said.

Souster told Gay Star News that he's experienced homophobic abuse in Sydney before but it was never physical.

He recounted the night's events in his own words:

"The first attack was a complete blur. I was literally across the road from my apartment when I went to turn around and walk home, after realizing that my friends had left and got into a taxi or walked.

I just remember being hit in the face by a male. After this I don’t know if I ran towards the oval in shock to get away or whether he forced me there but I remember waking up in the oval being kicked and punched all over my body by a group of males.

I don’t know if it was because I am gay but to look at me you’d know I am gay and especially with a few drinks in me.

The guy that tried to help me seemed genuine as he walked me within 50meters of my apartment. It was only when he asked what had happened and I mentioned that me and my boyfriend that he freaked out and said, "You’re one of those fags, ya fucking queer cunt."

Then he turned on me and hit me into the face, full force. I then ran home thinking he was following but he had turned away and ran, according to CCTV.

Souster told Gay Star News he "honestly thought I was going to die in that oval," and that he's "terrified" to leave his apartment now.

Police are still investigating the attacks on Souster as well as another separate suspected anti-gay attack on Sunday morning in Surry Hills, where two men reportedly jumped and beat another gay man. Police believe the attacks were all carried out by different individuals.

"The occurrence of two bias-related assaults over one weekend is not common, and of concern to police," NSW Police Sexuality and Gender Diversity spokesman Superintendent Tony Crandell said on Tuesday.

"With Mardi Gras season upon us and with larger numbers of people visiting Sydney's inner suburbs, help police to keep you safe by being aware of our surroundings at all times and calling triple zero if you feel under threat."