A senior Hamas official has been arrested in Gaza for allegedly disclosing information to Israel on the whereabouts of Muhammad Deif, the elusive commander of the terror group’s military wing, during the war in Gaza last summer.

Israeli intelligence sources believe that Deif was likely killed in an August 19, 2014, airstrike in Gaza City during Operation Protective Edge, a claim that Hamas has repeatedly denied, although Gaza-based officials have confirmed the deaths of Deif’s wife and two of his children in the strike.

A senior official in the terror group who was one of Deif’s close associates, Muhammad Rashid Shitawi, was apprehended by Hamas on Sunday and questioned in connection with the allegations, Channel 2 reported.

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According to Hamas, Shitawi received a phone call from Deif on August 19, at the height of the war, who asked him to bring his family to Shitawi’s house in the Sheikh Radwan neighborhood of Gaza city.

After Shitawi, whom Hamas alleged was an agent of Israel’s Shin Bet security service, acquiesced to Deif’s request, he immediately contacted his handlers and informed them of Deif’s precise location.

That enabled Israel to launch the airstrike that killed Deif’s family members and possibly Deif himself.

Shitwai was also being investigating for a bungled weapons sale to the terror group Islamic Jihad, Hamas said in a statement.

Deif has been wanted by Israel since the early 1990s for allegedly orchestrating terror attacks that killed hundreds of Israelis. Israeli officials believe he was coordinating Hamas’s movements during the summer’s conflict as head of its military wing.

Three other senior members of the military wing’s command hierarchy were killed in an Israeli strike a day after the attack on Deif’s hideout.

Deif survived at least four previous assassination attempts since 2002, after being appointed military commander following the death of his predecessor, Salah Shehade. Prior to last summer’s strike, he was believed to be paralyzed from previous attempts on his life.

In August, Hamas spokesman Abu Obeida vehemently denied that Deif was killed in the strike, noting that Israel was “unable to get to our commander Deif,” who will soon “lead the army that will enter to liberate the holy al-Aqsa mosque” in Jerusalem.

Israel launched Operation Protective Edge in Gaza with the stated intention of curbing Hamas rocket fire on Israeli towns and kibbutzim.

The 50-day conflict between the Jewish state and terrorist groups in Gaza resulted in the deaths of approximately 2,200 Palestinians — Israel contends that half were combatants, while the Palestinians say that most were civilians — and 72 people on the Israeli side, including 64 soldiers.

Times of Israel staff contributed to this report.