Islamic State (IS) released a new video, which purportedly shows the killing of up to thirty Ethiopian Christians in Libya.
The video depicts one group of men being beheaded on a beach and another group being shot in the head in a desert, the BBC reports.
The victims are believed to be members of the Ethiopian Church, who had been captured by IS militants in Libya.
Greek Prime Minister Alexis Tsipras urged the European Union on Sunday to urgently come up with a plan to tackle a mounting migrant humanitarian crisis in the Mediterranean.
"The Mediterranean must stop being a graveyard sea and southern European countries a storage of human souls,» Tsipras said in a televised address.
A boat crowded with 700 migrants overturned north of Libya on Saturday, leaving at least 24 confirmed dead and many missing. Italy's Coast Guard stated that the migrants' 20-meter vessel could have capsized as the people on board rushed to one side of the craft after seeing a Portuguese merchant vessel approach it.
Fifteen irregular Muslim immigrants from Africa, traveling on a boat to Italy, threw 12 Christian passengers into the Mediterranean Sea. Witnesses say that the incident occured after a brawl on board.
The police were informed and arrested the Muslim immigrants. Reports did not indicate what happened to the Christians and it is presumed that they were pulled back onto the ship.
More than 40 people are feared drowned off Italy in the latest sinking incident in the Mediterranean Sea.
According to media reports, 41 bodies and just four survivors were found by navy searchers on Thursday when they arrived in the Italian port of Traponi.
According to the survivors, their group of 45 people had left Tripoli on a raft, ANSA news agency reports.
A bomb exploded at the gate of the Moroccan embassy in Libya's capital, Tripoli, on Monday, causing some damage but injuring nobody.
The bomb was left in a bag at the gate of the embassy which is currently inactive. The blast caused some damage to the building and cars parked nearby.
Morocco is hosting UN-sponsored talks between rival Libyan government factions.