A strong earthquake killed at least 20 people in northern Afghanistan, authorities said Monday, just months after another deadly tremor that left the country reeling.

Iran's supreme leader Ayatollah Ali Khamenei said on Monday that Tehran would only consider cooperation with the United States if it changed its policy in the region including supporting Israel.

Israel returned the bodies of 45 Palestinians to Gaza on Monday, bringing the total number handed over under the ceasefire deal to 270, the health ministry in the Hamas-run territory said.

Israeli Prime Minister Benjamin Netanyahu has claimed that Hezbollah is attempting to "rearm" itself.

"We expect the Lebanese government to fulfill its commitment -- to disarm Hezbollah -- but it is clear we will exercise our right of self-defense under the terms of ceasefire," Netanyahu told the Israeli cabinet at its weekly meeting on Sunday.

Hundreds of people gathered in south Lebanon's Nabatiyeh on Sunday to mourn five Hezbollah members killed in recent Israeli attacks, an AFP correspondent said, as Israel warned of intensifying attacks against the Iran-backed group.

On Saturday, an Israeli strike killed four people in Kfar Rumman, Nabatiyeh district, the Lebanese health ministry and the Israeli military said.

U.S. President Donald Trump alleged Sunday that countries including Russia and China have conducted underground nuclear tests unknown to the public, and that the United States would follow suit.

Israeli police arrested former military prosecutor Yifat Tomer-Yerushalmi, the national security minister said Monday, following a scandal that erupted after she leaked a video appearing to show soldiers abusing a Palestinian detainee.

Turkey on Monday hosts a string of top diplomats from the Islamic world to bring their influence to bear on the future of Gaza, as fears grow for the increasingly fragile truce.

A U.S. strike on an alleged drug-trafficking vessel in the Caribbean killed three people on Saturday, Pentagon chief Pete Hegseth said, the latest such attack in international waters.

U.S. President Donald Trump threatened on Saturday to send the military into Nigeria with "guns-a-blazing" if Africa's most populous country does not stem what he described as the killing of Christians by Islamists.