Saudi-led coalition warplanes bombarded Yemeni rebels Sunday, witnesses said, in a new blow to a U.N.-proposed truce in the impoverished country where millions are threatened with famine.

Air strikes hit the Shiite Huthi stronghold of Saada in Yemen's north, as well as other rebel positions south of the capital Sanaa and in the southern province of Lahj, residents said.

Israel on Sunday released a Palestinian prisoner who staged a 56-day hunger strike which brought him near death in a protest against the controversial procedure allowing detainees to be held indefinitely without charge.

Khader Adnan was greeted to a hero's welcome in his village near Jenin, in the northern West Bank, that included fireworks, songs and flags for Islamic Jihad, the militant movement to which Israel says he belongs.

Tunisian authorities have arrested 127 suspected "terrorists" since last month's massacre of tourists at a beach resort, the minister heading the crisis group on the incident said Saturday.

"Since the attack, the security forces have carried out more than 700 operations resulting in the arrests of 127 suspected members of terrorist gangs," Kamel Jendoubi said.

Tunisia's status as a "non-NATO ally" of the United States has been approved, the U.S. State Department said, paving the way for enhanced military cooperation between the countries.

Washington hailed the partnership between the United States and Tunisia after the Major Non-NATO Ally (MNNA) status was confirmed Friday.

Syria's regime killed at least 28 people, mostly civilians, on Saturday when its warplanes dropped massive makeshift bombs on a town held by the Islamic State group, a monitor said.

The Syrian Observatory for Human Rights said the bombs used in the attacks on Al-Bab, in the northern province of Aleppo, were three times more destructive than so-called barrel bombs, which have already drawn widespread international condemnation.

Two missile strikes by unmanned American drones in southeastern Yemen have killed 10 suspected members of Al-Qaida, including three local chiefs, an official said Saturday.

The raids targeted a vehicle and a container loaded with weapons late Friday at the port of Mukalla, the provincial capital of Hadramawt, the local official said.

A U.N.-proposed Yemen humanitarian truce got off to a shaky start Saturday after Saudi-led coalition warplanes struck rebel positions and clashes persisted between insurgents and pro-government fighters.

The six-day ceasefire took effect just before midnight Friday as agencies scrambled to rush desperately needed relief supplies to millions threatened by famine.

The U.N. peace envoy for Syria plans to present new proposals at the end of July on the next steps needed in efforts to end the war, the U.N. spokesman said Friday.

Staffan de Mistura briefed U.N. Secretary General Ban Ki-moon and several ambassadors about his new peace plan during week-long talks at U.N. headquarters in New York.

The Islamic State group said it was behind a deadly car bomb attack on Italy's consulate in the Egyptian capital Saturday, and warned Muslims to stay away from such places.

Health ministry spokesman Hossam Abdel Ghaffar said the powerful early morning blast that shook central Cairo killed a civilian and wounded nine people, including policemen and passers-by.

A Franciscan priest serving in northern Syria has been released after almost a week in the hands of allegedly jihadist kidnappers, his church announced on Friday.

The Franciscan Custody of the Holy Land, with which he is affiliated, said on its website that Father Dhiya Aziz, a parish priest at Yacoubieh, in the northwestern province of Idlib, was apparently "treated well" during his ordeal.