An off-duty Israeli soldier, along with his mother and his girlfriend, a high school student, were among four people killed early Tuesday in an Iranian ballistic missile attack on Beersheba.

The soldier was named by the Israel Defense Forces as Cpl. Eitan Zacks, 18, a trainee in the elite Multidomain unit, from Beersheba.

He was at home for a paramedics course that had been held remotely due to the security situation.

He was killed alongside his mother, Michal Zacks, 50, in their family safe room, which was directly impacted by the missile.

Noa Boguslavsky, 18 years old and a 12th-grade student from nearby Arad, was also killed in the safe room. She was identified by Hebrew media as Eitan Zacks’s girlfriend.

A fourth person was killed in an adjacent apartment.

Two missiles were fired at Beersheba in a salvo at 5:40 a.m. One was intercepted, and the second struck the sixth floor of an apartment complex in the southern city, causing extensive destruction, including the collapse of part of the building.

The building was relatively new, and homes had their own reinforced rooms. However, the missile directly hit two safe rooms, according to a preliminary probe by the military’s Home Front Command. One of the bomb-safe rooms was destroyed by the impact, the probe found.

A total of 28 people were killed in Iran’s ballistic missile attacks since June 13. Apart from Cpl. Zacks, all were civilians.

The barrages came amid a war that opened when Israel attacked Iran earlier this month, characterizing its nuclear and ballistic missile programs as an existential threat that Jerusalem had to preempt.

On Tuesday, a US-brokered ceasefire between Israel and Iran took effect, though the two sides exchanged fire in the hours after it began.