Former NFL star Sergio Brown, who played for the Patriots and Colts, is missing after his 73-year-old mother was found dead by homicide in an Illinois creek.

A former NFL star is missing after police discovered his 73-year-old mother was found dead and abandoned in an Illinois creek.

On Saturday, the Maywood Police Department was notified by family members that they had not been able to find or make contact with Myrtle Brown, 73, and her son Sergio Brown, 35.

Following this report, a search for missing persons was launched. Myrtle Brown’s body was found in a river near her home Saturday. She was the victim of an assault and her death was ruled a homicide, authorities ruled.

Now police are desperately searching for the NFL star who played for seven seasons and detailing what happened to him and his mother.

“I’m not waiting another hour. Please share! If you see them or any of them please let me know or contact the Maywood Police Office,” Nick Brown, Myrtle’s son and Sergio’s brother, said in a social media post.

NFL star Sergio Brown (left) and his mother, Myrtle (right) were both reported missing on Saturday. Myrtle was found dead in Addison Creek as her son has still not been found

Nick Brown, son of Myrtle and brother of Sergio, shared an emotional post on Facebook asking for information

Nick has shared this same message two more times on Facebook since the family was initially reported missing.

Myrtle Brown’s sister, Sheila Simmons, told WGN that the last time she spoke to her sister was Thursday, September 14.

It wasn’t until around 3 a.m. Saturday morning that Simmons received the call that her sister and nephew were missing. Simmons quickly showed up at the home the two shared together and felt things were “out of the ordinary.”

“We’re going to find out what happened because it’s not normal that my sister is not answering her phone, not responding to text messages. People have been contacting her since Friday. No one has been able to reach her. Now, I got a call this morning that she was missing, so I immediately came here and found out my sister was dead,” Simmons told WGN TV News.

Simmons reportedly searched the creek behind the house with police when they arrived, but found nothing.

Only later, when she and other family members returned to search, did they find Myrtle’s body in the Addison Creek Reservoir outside Chicago.

After an examination of the body Sunday, the Cook County medical examiner’s office ruled her death a homicide after concluding she suffered assault-related injuries.

Maywood police are still searching for Sergio, who played for five different NFL teams before retiring in 2016.

Myrtle Brown’s sister, Sheila Simmons, told WGN that the last time she spoke to her sister was September 14.

Sergio played for the University of Notre Dame before continuing his career in the NFL. He signed with the New England Patriots as a safety in 2010.

He also played for the Indianapolis Colts, Atlanta Falcons, Jacksonville Jaguars and Buffalo Bills.

Others also turned to X and posted a missing person poster in an attempt to find Sergio.

Family members told WGN TV News they haven’t heard a word from Sergio.

Sergio played for the University of Notre Dame before continuing his career in the NFL. He signed as an undrafted free agent with the New England Patriots as a safety in 2010.

After parting ways with the team in 2012, he later moved on and played for the Indianapolis Colts, Atlanta Falcons, Jacksonville Jaguars and Buffalo Bills.

The Maywood Police Department is currently trying to locate Sergio and is asking if anyone has seen him to contact them immediately at their inquiries or anonymous phone numbers.

MailOnline.com contacted Maywood police and officials did not respond in time for this report.

Other social media users shared Sergio’s missing person poster in a bid to find him. It was last seen with his mother on August 25 as they left their home to go to a family reunion in Mississippi which they never showed up to.