Three people were missing on Monday after an oil tanker rescued a group of 139 migrants and refugees in distress in international waters on Sunday might.
The three men from Syria, Ethiopia and Bangladesh reportedly fell into the water while being transferred from their 12-metre boat to the Vault.
The group had reportedly departed from Sabratha in Libya.
On Sunday a 15-year-old boy from Guinea traveling in a group of around 50 people was reported missing after the boat they were traveling on capsized in waters off the Italian island of Lampedusa as an Italian coast guard patrol boat approached to rescue them.
A 15-month-old girl from Cameroon was reported missing at sea on Saturday after the boat she was aboard capsized in similar circumstances.
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