"The U.N. refugee agency is investigating why Malta last week allegedly asked the Libyan coast guard to intercept a migrant boat in a zone of the Mediterranean under Maltese responsibility, in possible violation of maritime law, a U.N. official said Tuesday."
UNHCR probes Libya-Malta interception in migrant rescue (AP, link)
“Vincent Cochetel, the U.N. High Commissioner for Refugees’ special envoy for the central Mediterranean, told reporters in Rome that “there’s some evidence that Malta requested assistance (from) the Libyan coast guard to intervene” in its own search and rescue region on Oct. 18.”