Four French Jews killed during an Islamist attack on a kosher supermarket in Paris are to be buried in Israel on Tuesday, community sources and the Israeli premier said.

"The four families decided to bury their dead in Israel. The funerals will be held on Tuesday at 10 am (0800 GMT) at the Mount of Olives cemetery" in Jerusalem, a Jewish community source told Agence France-Presse in Paris.

An Egyptian court has sentenced a student to three years in jail for announcing on Facebook that he is an atheist and for insulting Islam, his lawyer said Sunday.

Karim al-Banna, a 21-year-old whose own father testified against him, was jailed by a court in the Nile Delta province of Baheira on Saturday, lawyer Ahmed Abdel Nabi told Agence France-Presse.

Hundreds rallied in Jerusalem and Ramallah on Sunday in separate shows of solidarity with France over the attacks in Paris that left 17 people dead.

More than 500 people gathered in Jerusalem in front of a screen reading in French "Jerusalem is Charlie", an Agence France-Presse correspondent said.

The toll from two car bomb attacks which targeted al-Qaida and Kurdish checkpoints in northern Syria has risen to 20, most of them civilians, a monitoring group said Sunday.

Among the dead in Saturday's attacks were four members of the civil defense force, whose volunteers risk their lives daily to rescue casualties from bombing sites.

Three small girls and an elderly man have died in Syria in the past 24 hours due to bitterly cold temperatures and a week-long storm, a monitoring group said Sunday.

"A girl less than two days old passed away (Sunday) in the southern Aleppo district of Firdous because of the extreme cold," said Syrian Observatory for Human Rights director Rami Abdel Rahman.

Islamic State group fighters attempting to retake a town in northern Iraq held by Kurdish peshmerga forces have killed at least 30 Kurds, an Iraqi military spokesman said Sunday.

The fighting began Saturday as the extremists approached the town of Gwer, just outside of the northern city of Mosul, which the Islamic State group controls, said Halgurd Hekmat, a spokesman for Iraqi Kurdish forces in Irbil. Hekmat said he had no information about casualties suffered by the Islamic State group.

Human Rights Watch on Sunday urged the Yemeni government to "credibly" investigate the killing of a prominent southern separatist while he was being arrested during a protest.

Khaled al-Junaidi, a well-known figure in the Southern Movement, was shot in the chest when security forces opened fire while trying to arrest him on December 15, activists told Agence France Presse at the time.

Clashes between Berbers and Arabs in the southern Algerian town of Ghardaia wounded 10 people Saturday, including two gendarmes, national news agency APS reported.

The fighting erupted when Mozabite (Berbers) youth tried to prevent  a group of Arabs, or Chaamba, from going to a mosque located in a majority Mozabite neighborhood, the agency said.

Car bombs killed at least 16 people, most of them civilians, when they targeted al-Qaida and Kurdish fighters Saturday in Syria's northern province of Aleppo, a monitor said.

The first bomb hit a checkpoint manned by fighters from al-Nusra Front, al-Qaida's Syria franchise, killing 12 people, said the head of the Syrian Observatory for Human Rights, Rami Abdel Rahman.

Israeli Prime Minister Benjamin Netanyahu told French Jews Saturday, after 17 people were killed there during three days of Islamist attacks, that Israel is their home. 

"To all the Jews of France, all the Jews of Europe, I would like to say that Israel is not just the place in whose direction you pray, the state of Israel is your home," he said in a televised statement, referring to the Jewish practice of facing Jerusalem during prayer.