At least 13 migrants including four babies drowned when two boats making the perilous crossing from Turkey to Greece capsized today.

One boat overturned off the Greek island of Samos - just 20 metres from the shore. Ten bodies, including six children - four of them babies - were found in the vessel's cabin while one was discovered washed up on the island.

Two others were still missing with coastguards saying 15 were plucked from the water.

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At least 13 migrants including four babies drowned when two boats making the perilous crossing from Turkey to Greece capsized today

A boat from the European border agency Frontex also recovered two bodies near the island of Farmakonnisi, near Samos, after what is believed to be a separate capsizing.

Frontex managed to rescued three others, who said their boat was carrying 15 people when it sank in Turkish waters.

Greek authorities and the Turkish coastguard 'continue to search the zone to find the migrants who disappeared in the sinking, which probably took place off the Turkish coast'.

The new sinkings add to a string of migrant boat tragedies since Monday off the Greek islands of Lesbos, Kalymnos and Rhodes in which more than 60 people have drowned, at least 28 of them children.

This plastic pleasure boat became sunken grave for at least 13 of the migrants who sadly drowned

Migrants and asylum seekers begin to travel on a dinghy to the Greek island of Chios from Cesme in the Turkish province of Izmir earlier today

Photographs show four or five men braving the rough seas in an attempt to launch the packed dinghy by hand in Turkey

A man embraces his wife after they arrive by boat at a beach on the northern coast of Lesbos, Greece, this morning

A rubber boat carrying migrants - all wearing bright orange life jackets - arrives at Lesbos earlier today

Photographs have been emerging of lifeless bodies washing up on Lesbos.

On Friday alone, 22 people, including 17 children, lost their lives trying to cross to the eastern Aegean islands from Turkey, to which more than two million Syrian refugees have fled.

That followed another tragic day on Wednesday when 24 migrants - 11 of them children - died in five shipwrecks off Lesbos, Samos and Agathonisi.

Volunteers attempt to warm up a young boy with an emergency blanket after migrants disembark from a tiny boat

Since the beginning of the year, 580,125 migrants have landed on Greece’s shores, according to the UN refugee agency UNHCR

A girl cries as she is removed from a boat by volunteers after crossing from Turkey with dozens of other migrants

Migrants wave as they begin the perilous journey from Turkey to Greece on a tiny rubber boat this morning

A happy family take a selfie in front of what appears to be an abandoned boat after they made the crossing from Turkey to northern Greece yesterday

Since the beginning of the year, 580,125 migrants have landed on Greece’s shores, according to the UN refugee agency UNHCR, with a total of 723,221 crossing the Mediterranean to Europe.

Greek Prime Minister Alexis Tsipras said Friday that the drownings were a 'humanitarian tragedy' and a 'shame' for Europe.