Reuters Migrants queue near Athens in Greece. As many as one million more are due this year

FREE now and never miss the top politics stories again. SUBSCRIBE Invalid email Sign up fornow and never miss the top politics stories again. We will use your email address only for sending you newsletters. Please see our Privacy Notice for details of your data protection rights.

Refugees fleeing ISIS and the Syrian civil war are due to be joined by more economic migrants from around the world. A report from the UN's refugee council and other agencies said that Europe's strained resources will come under even more pressure this year.

It identified new sources of incoming migrants, including South West Asia, North Africa and West Africa.

UNHCR This UN map shows migrant flows so far in 2016. Numbers are expected to spike after winter

Capacity to deliver essential services... has been further stretched' UN report

At the moment around 90 per cent of migrants, a million of whom have already crossed from Turkey into the EU, come from the world's top 10 refugee hotspots. But as the year progresses, this proportion will get bigger. Numbers are expected to pick up after winter ends and crossing becomes easier.

AP Lifejackets pile up at a landfill site on Lesbos, the most popular way into Europe

The report identified Iran, Pakistan, Bangladesh, Somalia, the Democratic Republic of the Congo, and other African nations as producing increasing flows of migrants. It also said that more women and children are expected to try to enter Europe, in the hope of following men in their families who are already here.

AP A Red Cross worker sits on the shores of Lesbos, waiting for more migrants

The one million figure is a combined total of migrants expected to travel by sea over the Mediterranean and over land through the Balkan states. It notes that the vast majority of migrants have no interest in stopping along their route to "destination countries", which the report does not name.

Many host communities are "struggling" to accommodate even existing migrants "without penalising the local communities", it warned. The report noted: "Their capacity to deliver essential services, such as sewage treatment, waste management, water supply and electricity to medical and reception facilities, has been further stretched."