The United Nation's troubled observer mission to Syria has officially ended after being recalled amid escalating violence as world powers fail to agree how to end months of bloodshed in the country.

The mandate of the U.N. Supervision Mission in Syria (UNSMIS) expired at midnight Sunday after a roughly four-month deployment in which its work was hobbled by growing unrest that has cost tens of thousands of lives.

Jordan said on Sunday four rockets fired from neighboring Syria fell inside its northern border area, wounding a young girl and sparking a letter of protest.

"A young girl was injured on Sunday after four rockets fell on an area near the border with Syria as a result of clashes inside Syria," Information Minister and government spokesman Samih Maaytah told Agence France Presse without elaborating.

Jerusalem police on Sunday arrested three Jewish teens suspected of a brutal hate attack on young Palestinians, and magistrates remanded in custody another suspect detained a day ago.

"Altogether four people have been arrested," police spokesman Micky Rosenfeld told Agence France Presse.

Julian Assange called Sunday for U.S. soldier Bradley Manning, the alleged source of a massive trove of secret government documents published by WikiLeaks, to be released from a military prison.

Assange made the appeal in a speech from the balcony of the Ecuadoran embassy in London, his first address since he was granted political asylum in his long-running bid to avoid extradition from Britain to Sweden.

Somalia's newly appointed legislature will elect the country's next president Monday, in a fresh bid to end two decades of unstable central government in the war-torn Horn of Africa nation.

The election of the new president would complete a complex process set in motion through a U.N.-backed agreement aimed at ending eight years of rule by Somalia's graft-riddled, Western-backed Transitional Federal Government (TFG) and, it is hoped, would bring peace.

Syrian helicopters have dropped leaflets over the northern city of Aleppo urging residents not to shelter rebels and warning the Free Syrian Army it had one last chance to surrender.

Some of the leaflets dropped late Saturday, in what rebels and residents said was a first, were designed as official-looking checkpoints passes for supporters of the rebels wishing to surrender.

A Christian girl with Down's Syndrome has been arrested on blasphemy charges in Pakistan, accused of burning pages inscribed with verses from the Koran, police and activists said on Sunday.

Police arrested Rimsha, who is recognized by a single name, on Thursday after she was reported holding in public burnt pages which had Islamic text and Koranic verses on them, a police official told Agence France Presse.

Turkish authorities crossed the Syrian border Sunday to distribute humanitarian aid to Syrians who have been forced from their homes and are massed at the border, emergency officials said.

The authorities gave out food and other supplies on Syrian soil, just across the border from the southern Turkish town of Reyhanli, in a region where hundreds of displaced Syrians are waiting to enter Turkey, officials told Turkish news agency Anatolia.

The opposition Syrian National Council and new U.N. peace envoy Lakhdar Brahimi had a run-in on Sunday over whether it was time for Syrian President Bashar Assad to step down.

"The revolutionary Syrian people were shocked and dismayed by Mr. Lakhdar Brahimi's statements," said the exiled opposition coalition, triggering a retort from the envoy.

WikiLeaks founder Julian Assange urged President Barack Obama to end the U.S. "witchhunt" against his whistleblowing website, in a speech Sunday from the balcony of Ecuador's London embassy.

"I ask President Obama to do the right thing, the United States must renounce its witchhunt against WikiLeaks," said Assange, making his first public statement since being granted political asylum by Ecuador on Thursday.