Talks between the United States and Iran are expected to take place in Oman but the scope of the discussions needs to be agreed, an Arab diplomat told AFP on Wednesday.

"A meeting is requested in Oman by the Iranians, and the Americans have approved the location, but the parameters of discussions are still being worked on," the diplomat said on condition of anonymity because of the sensitivity of the talks.

Many hoped the reopening of the Rafah crossing between Egypt and Gaza would bring relief to the war-battered territory, but for the first few Palestinians allowed to cross, it proved more harrowing than a homecoming.

Three women who entered Gaza on the first day of the reopening told The Associated Press on Tuesday that Israeli troops blindfolded and handcuffed them, then interrogated and threatened them, holding them for several hours and inflicting what they said was humiliating treatment until they were released.

A second round of peace negotiations between Russia and Ukraine mediated by the United States has begun in the United Arab Emirates, Ukraine's lead negotiator announced Wednesday.

"Another round of negotiations has begun in Abu Dhabi," the head of the Ukrainian delegation, Rustem Umerov, wrote on social media, adding Kyiv's team was seeking "to achieve a just and lasting peace."

Israeli strikes pounded Gaza on Wednesday, killing at least 21 Palestinians, including two infants, and further rocking a fragile ceasefire deal, hospital officials said. Israel said it was responding to a militant attack on Israeli soldiers that seriously wounded one.

Deadly Israeli strikes have repeatedly punctuated the truce since it came into effect on Oct. 10, and the escalating Palestinian toll has made many in Gaza say it feels like the war is continuing unabated. Among the Palestinians killed Wednesday were five children, seven women and an on-duty paramedic, according to hospital officials.

Seif al-Islam Gadhafi, the son and one-time heir apparent of Libya's late dictator Moammar Gadhafi, was killed in the northern African country, Libyan officials said Tuesday.

The 53-year-old was killed in the town Zintan, 136 kilometers (85 miles) southwest of the capital, Tripoli, according to Libyan's chief prosecutor's office.

A U.S. Navy fighter jet shot down an Iranian drone that was approaching the aircraft carrier USS Abraham Lincoln in the Arabian Sea, U.S. Central Command said Tuesday, threatening to ramp up tensions as the Trump administration warns of possible military action to get Iran to the negotiating table.

The drone "aggressively approached" the aircraft carrier with "unclear intent" and kept flying toward it "despite de-escalatory measures taken by U.S. forces operating in international waters," Central Command spokesman Capt. Tim Hawkins said in a statement.

Israel's army will appoint its highest-ranking Muslim woman to replace chief Arabic-language spokesman Avichay Adraee, the public face for Palestinians and Lebanese of its military campaigns, a military source said on Tuesday.

Major Ella Waweya will replace Lieutenant Colonel Avichay Adraee, who for people in Gaza and Lebanon is indelibly linked with Israel's deadly bombing campaigns and known for what are seen as provocative uses of colloquial Arabic, koranic verses and humor in his messages.

Turkish President Recep Tayyip Erdogan arrived in Riyadh on Tuesday, Saudi media said, his first visit to the kingdom in over two years as Saudi Arabia moves closer to its rival-turned-ally.

Ties between Turkey and Saudi Arabia have steadily recovered in recent years, with the countries cooperating on a range of diplomatic issues.

Kurdish forces imposed a curfew on Kurdish-majority Qamishli in northeastern Syria on Tuesday, ahead of the deployment of government troops to the city, an AFP team reported.

The curfew came after Syrian security personnel entered the mixed Kurdish-Arab city of Hasakeh and the countryside around the Kurdish town of Kobane on Monday, as part of a comprehensive agreement to gradually integrate the Kurds' military and civilian institutions into the state.

U.S. envoy Steve Witkoff will meet with Israeli Prime Minister Benjamin Netanyahu on Tuesday, an Israeli official said, following the reopening of Gaza's key Rafah border crossing with Egypt.

The Israeli official did not confirm the location or subject of the meeting, but Israeli media reported Witkoff will arrive in Israel on Tuesday. Witkoff and U.S. envoy Jared Kushner held talks with Netanyahu in late January in which they reportedly pushed for the reopening of the Rafah crossing.