Police flew in reinforcements to accelerate the process, and some 400 people boarded an Athens-bound ferry late Thursday, a day after another 1,500 left by sea for the Greek capital.

Nearly 50 people were treated for panic attacks and injuries relating to the heat, hunger, and being crushed in the crowd, they said.

TUI, which published a third quarter trading update, said Greece accounts for around 10% of its annual tour operator programme.

Greece is struggling to cope with the increase of migrant arrivals. The vessel, due to arrive on Friday could be used to house migrants.

His comments come after up to 2,000 refugees, including women, children and young babies, were locked in a stadium overnight with no access to hygiene facilities, shade or shelter. A total of 98,000 have arrived in Italy. The footage, which appears to show the policeman roughly pushing a group of migrants crowding outside a local authority building before he slaps one man across the face, was captured by an Associated Press correspondent on Monday. Right-wing parties want the government to repatriate most of the newcomers immediately. Refugees from the Middle East are overwhelming the economically failing country.

Médecins sans Frontières spokeswoman Julia Kourafa said it was the first time she had ever witnessed this in Greece. “You can not have people camping out like this any more”.

But large numbers of refugees remain camped outside the stadium waiting to register.

Mayor Kiritsis said the situation had “calmed” on Wednesday but was still tense as thousands of migrants await registration. There are more than 1,000 migrants in Kos, mostly Syrian and Afghan. “We don’t have that money”.

The TurkeyovervallenGreece route has reemerged majority of these summertime as a vibrant enterprise for smugglers cashing in on the flow of people in general running attempt and adversity. The boat is getting closer – and the three dozen Syrian refugees packed on board are excitedly eyeing the shoreline.

Migrants on the Greek island of Kos have been tear-gassed and reportedly beaten as hundreds suffer sweltering conditions locked inside an open-air stadium without water, food or toilets.

Medics with charity Doctors Without Borders said they treated refugees fleeing Syria and other warzones for panic attacks after police threw stun grenades, which emit blinding flashes of light and deafening bangs, into the crowds on Wednesday. “Also, I was living in fear; I had to leave”. Along the way, Arabic speakers helped Turkish smugglers in Izmir.

“Maybe they looked at my face”, he said. “They feel sorry for them, of course, but they shouldn’t be out there in tents in the harbor or the parks”.

He had to wait several days before crossing, however, while the smuggler trained one of the Syrian passengers to navigate the boat.