Refugees stuck in Greece reveal regret: 'Here we die slowly'

World leaders are trying to come up with a plan for an international response to the global refugee crisis at a special United Nations summit.

The UN estimates 57,000 migrants are now trapped in Greece in 47 camps - unable to continue their journeys because Europe has closed its borders.

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We met migrants living in a disused toilet roll factory called Softex. They told us of their increasing desperation at being stuck.

Softex is home to around 1,500 migrants. It is notorious amongst aid workers as being the worst of the camps.

The first thing that strikes you as you walk into the old warehouse is just how dark it is with tents as far as the eye can see.

Youngsters play in the dark passages between the rows - their mothers telling you how they are frightened for their children.

Come nightfall migrants claim drugs gangs try to ply their trade.

One man, who didn't want to be identified, said: "Mafia from Albania come here and sell drugs in this camp and the police do nothing."

Just outside the doors of the warehouse we watch as people try to separate two other migrants who are fighting.

The atmosphere is tense and we're told in this incubator of fear and frustration tempers often boil over.

There's not much to do except sit around. No formal classes for the children and "no plan" as one man puts it for the adults. These people feel forgotten.

Abed Jasem shows us inside his tent. There are four camp beds for his family of six - his wife Amina el Aresh and their four children aged five to 16.

They've fled the bombardments and horror of civil war in the Syrian city of Aleppo, but likens his life now to his life there.

He tried to do the best for his family but bringing them to Europe is now a decision he bitterly regrets.

"I feel like I put my family in hell," he said.

"In Syria it's hell - there we die quickly but here we die slowly, this is the difference."

Mohammed Carson came to Greece from Damascus with his sick nine-year-old son Mustaffah.

Mustaffah lies on the floor lacking in energy. His father says he has a problem with his throat.

Mohammed's pain though seems incurable. He sits cross legged outside the tent his head in his hand, appearing close to tears.

He left his wife behind in Syria hoping to go ahead and find a home then send for her. This seems utterly impossible now.

He said: "The situation is really bad. There's no plan for us."

Another migrant says the only option is to turn to criminals for help - showing us how easy it is to dial a people smuggler who offers a passage to Serbia for 1,200 euros.

There are volunteers and there is help from aid agencies but it's the overriding sense of hopelessness that only international will can change for them now.