The three men killed in Monday’s mass shooting at the Islamic Center of San Diego were mourned at a memorial service on Thursday in San Diego before being buried besides each other.

Hundreds of members of the Muslim community mourned the security guard and father of eight Amin Abdullah, who police say prevented more deaths, along with two members of the mosque, Nader Awad and Mansoor Kazziha, who were gunned down by teenage killers Cain Clark, 17, and Caleb Vazquez, 18.

The prayer service was held at the Snapdragon Stadium located at the San Diego State University Mission Valley Campus.

“Three heroes martyred at the Islamic Center of San Diego protecting our children,” message on the the Islamic Center website read.

Mourners prayed and stood together close to the bodies of the men before they were taken to the La Vista Memorial Park in National City where they were laid to rest.

The service was shared on the Islamic Center’s social media, with many mourning the three from afar.

“I wish I could be there. May Allah (SWT) grant Brother Mansour, Brother Amin, and Brother Nadir Jannatul Firdaus,” one post read.

“All three of them were the kindest and most gentle human beings. May Allah SWT comfort their families’ hearts and all of ours (including the students and staff at BHA) for this significant loss to our community and Ummah.”

“Today our brother Amin Abdullah was laid to rest May Allah S.W.T illuminate his grave and make it a spacious dwelling place for him,” another wrote.

“He lived protecting the house of Allah and today he was returned to his Creator as a Shaheed. We ask Allah S.W.T to grant him the highest ranks of Jannah with the Prophets and the righteous and to pour patience and comfort into the hearts of his family. Ya Allah accept him, forgive his sins and let us meet him in the gardens of eternity Ameen.”

“May Allah accept Amin, Mansour and Nadir and shuhada, and grant them the highest levels of Jannah,” a third person wrote.

Clark and Vazquez went on a deadly shooting rampage at the San Diego mosque on Monday, killing three before turning the gun on themselves. 

At least one of the suspects took a weapon from his parents’ home and left a suicide note that talked about racial pride, a law enforcement source told The Post.

The shooters co-authored a manifesto, featuring the same Nazi imagery Clark donned in a livestream video of the horrific attack.

After the shooting, the livestream showed Clark shoot Vazquez twice in the head before turning the gun on himself.

Anti-Islamic writings were also found in the suspects’ vehicle, according to a law enforcement source.

The shooters’ motivations are unknown, though it appears to be a crime aimed at the Muslim faith.