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The Welsh Government is looking at what testing can be brought in for passengers returning from Greece to Cardiff Airport, the BBC has been told.

The claim from aviation sources comes after at least 16 people tested positive for Covid-19 following a flight from Zante to Cardiff.

Earlier a minister raised concerns of rules being broken on the 25 August TUI departure.

Almost 200 people face self-isolating following the flight.

At a press conference on Tuesday, Wales' Education Minister Kirsty Williams said the government was "deeply concerned" at reports from people about "the lack of appropriate measures to keep everybody on that flight safe".

She said Health Minister Vaughan Gething was speaking to "all the relevant parties" and would make a statement later that day.

Greece and its islands remain on the UK government's list of quarantine-exempt countries, meaning travellers do not need to self-isolate on their return.

But the Foreign and Commonwealth Office (FCO) updated its travel advice for Zante on 29 August to reflect local coronavirus restrictions put in place on the island.