Muslim clerics condemned three militant attacks in Tunisia, Kuwait and France on Friday that killed dozens of people including holidaymakers.

Al-Azhar, a leading Sunni Muslim institution based in Egypt, said the "heinous" shooting at a Tunisian coastal resort which killed 28 people, mostly Europeans, was a "violation of all religious and humanitarian norms."

An Islamic State group suicide bomber killed at least 20 regime troops in Hasakeh city in northeast Syria on Friday, the Syrian Observatory for Human Rights monitoring group said.

"The attack by a booby-trapped car targeted the criminal security service headquarters in the south of the city" where deadly clashes have been under way since Thursday, the Britain-based monitor said.

The Turkish military has ordered the dishonorable discharge of a soldier who was briefly abducted in January by Islamic State (IS) militants after he went missing on the border with Syria, media reported on Friday.

Ozgur Ors, a non-commissioned officer, went missing during an army operation against smugglers but then was rescued by a mission coordinated by Turkey's spy agency.

The Islamic State group killed 164 civilians in its offensive on the Kurdish town of Kobane, in what a monitor Friday called one of the jihadists' "worst massacres" in Syria.

The killing spree, which took place mostly inside Kobane itself, was widely seen as vengeance for a series of defeats inflicted on the jihadists by Kurdish militia in recent weeks.

South Korea imposed financial sanctions Friday on a Syrian research center as well as six Taiwanese individuals and companies for their alleged involvement in arms trading with North Korea.

The South has previously imposed sweeping sanctions against companies based in the North, but this is the first time such measures have been taken against a group or individual outside the Korean peninsula.  

Lebanese officials have warned of a huge Syrian refugee influx to Lebanon if the so-called Damascus battle erupts, An Nahar daily reported on Friday.

The ministerial sources told the newspaper that if such an influx takes place, the displaced Syrians will include supporters of Syrian President Bashar Assad from different sects.

The United States will provide $360 million in "life-saving assistance" to victims of the Syrian civil war, the State Department said Thursday, bringing its total to $4 billion since the fighting began.

The money will partly support various United Nations programs and other non-governmental organizations in Syria, where more than 230,000 people have died since the conflict erupted with anti-government demonstrations in March 2011.

German federal prosecutors have said they have filed terrorism charges against four men, among them three Lebanese, on allegations they supported an ultraconservative Syrian rebel organization, Ahrar al-Sham.

Prosecutors said Thursday that Lebanese nationals Kassem El R., 32 and Hassan A.S., 29, German Nuran B., 49, and Ali F., 30, who has dual Lebanese-German citizenship, have been charged with supporting a foreign terrorist organization.

The Islamic State group on Thursday sold 42 Iraqi women it had abducted from the Yazidi religious minority to its fighters in eastern Syria, a monitor said.

The Syrian Observatory for Human Rights said the women were being treated as "slaves" by the jihadists and were sold "for between $500 (447 euros) and $2,000 dollars (1,785 euros)."

A rocket fired from Syria hit a city in northern Jordan Thursday, killing one person and wounding four, a government source said, without indicating who may have been responsible.

"A rocket fired from Syrian territory struck the city of Al-Ramtha, near the Syrian border, killing a young man of 20 and wounding four others," the source said.