An Israeli reality TV star broke down in tears as she described receiving a harrowing message about a terrorist who killed a young man and his girlfriend — and sent video of the barbaric act to the mom from her son’s phone.

Mor Radmi, star of the show “Wedding at First Sight,” said the horrific incident happened after 260 people were slaughtered at a music festival in the Negev Desert when Hamas launched its attack on Israel early Saturday, Israel Hayom reported.

The woman had been collecting donations and assisting people to find their missing relatives, many of whom were killed and others abducted by the bloodthirsty terrorists.

But nothing prepared Radmi for the gut-wrenching text message she said she received Monday.

“All day people send me difficult messages but I got this message … it simply broke me to pieces,” she said as she began sobbing.

“‘Hey, I must tell you about my good friend. Her son was missing from the party/ Today she received a video from the terrorist who murdered her son and his girlfriend,’” she said the message read.

“‘(The terrorist) filmed the murder on her son’s phone and sent the video now,’” she continued.

News about the chilling episode emerged amid accounts of atrocities by the jihadists.

Babies and toddlers were found with their “heads decapitated” in Kfar Aza in southern Israel, Tal Heinrich, a spokesperson for Israeli Prime Minister Benjamin Netanyahu, said Wednesday, according to CNN.

Israel-Hamas war: How we got here

2005: Israel unilaterally withdraws from the Gaza Strip more than three decades after winning the territory from Egypt in the Six-Day War.

2006: Terrorist group Hamas wins a Palestinian legislative election.

2007: Hamas seizes control of Gaza in a civil war.

2008: Israel launches military offensive against Gaza after Palestinian terrorists fired rockets into the town of Sderot.

2023: Hamas launches the biggest attack on Israel in 50 years, in an early-morning ambush Oct. 7, firing thousands of rockets and sending dozens of militants into Israeli towns.

Terrorists killed more than 1,200 Israelis, wounded more than 4,200, and took at least 200 hostage.

Israeli Prime Minister Benjamin Netanyahu was quick to announce, “We are at war,” and vowed Hamas would pay “a price it has never known.”

The Gaza Health Ministry — which is controlled by Hamas — reported at least 3,000 Palestinians have been killed and more than 12,500 injured since the war began.

His comments come after the IDF told CNN on Tuesday that the terrorists carried out a “massacre” in Kfar Aza, in which women, children, toddlers and elderly people were “brutally butchered in an ISIS way of action.”

The terror group denied “false” media reports about attacking children.

More than 1,200 have died and more than 2,000 others have been injured by the terrorists, officials said. At least 100 Israelis were taken hostage.

Meanwhile, US officials announced that 14 Americans have died in the ongoing war between the two sides.