Palestinians in a Kos migrant camp disturbingly celebrated the terrorist attack on a synagogue in Jerusalem by chanting "Allahu Akbar", Arabic for "God is Great."
The incident took place late at night, without warning, when several of illegal migrants came out of their accommodation and shouted slogans. As can be seen in the video published by Proto Thema, the immigrants, mostly Arabic-speaking and Palestinian, shout slogans in favour of Palestine.
"Long live Palestine" they can be heard saying, among other things, while they also sang a traditional Palestinian song. Also heard was the well-known call "Allahu Akbar."
Their street celebration came after the deadly attack on a synagogue in East Jerusalem became known in Arabic-speaking social media circles. A total of seven Israelis were killed and three wounded on Friday night in the Neve Yaakov neighborhood.
The gunman was shot and killed, police said. The Hamas spokesman said the attack was in retaliation for the Israeli army's raid on the Jenin refugee camp on Thursday, which killed nine Palestinians and wounded 20 others in clashes with Israeli soldiers.
At that time, the staff of the Kos migrant centre was put on alert for any incidents. After about half an hour, however, the migrants left, returning to their rooms. The Migrant Camp of Kos has a population of approximately 1,000 people, the majority of whom are of Palestinian origin.
Two people were also injured on Saturday in a separate attack outside the Old City of Jerusalem.
Israeli police said the gunman in Saturday's attack was a 13-year-old boy.
They said he had been "neutralised", but did not give further details.
The attack took place in the Silwan neighbourhood, just outside Jerusalem's Old City. The injured pair were a father and son who were in a "moderate to serious condition", police added.
In response to the two attacks, authorities have positioned officers from a counter-terrorism unit "permanently" in the Jerusalem area to "promptly respond to exceptional events whenever necessary".
The man who attacked the synagogue on Friday was identified by local media as a Palestinian from East Jerusalem, who police described as a "terrorist".
Speaking at the scene of the attack on Friday, Israeli police commissioner Kobi Shabtai called it "one of the worst attacks we have encountered in recent years".
Israeli worshippers had gathered for prayers at the start of the Jewish Sabbath in a synagogue in the city's Neve Yaakov neighbourhood and were leaving when the gunman opened fire, at about 20:15 local time (18:15 GMT).
Police said that officers then shot him dead.
Palestinian militant groups praised the attack, but did not say one of their members was responsible.
Tensions have been high since nine Palestinians - both militants and civilians - were killed during an Israeli military raid in Jenin in the occupied West Bank on Thursday.
This was followed by rocket fire into Israel from Gaza, which Israel responded to with air strikes.