Europe must support Turkey in Syria if it wants migrant solution: Erdogan

European countries must support Turkey's "solutions" in Syria if they want to resolve the migration crisis, President Recep Tayyip Erdogan said Wednesday, accusing Europe of "trampling" on refugees' rights.

"If European countries want to resolve the issue, they must support Turkey's efforts for political and humanitarian solutions in Syria," Erdogan said in a televised speech.

"All European countries closing their borders to refugees today, trying to push them back by hitting them and sinking their boats, in fact even shooting at them, are trampling over the universal declaration of human rights," he said in Ankara.

Following the deaths of over 30 Turkish soldiers in Syrian regime fire last week in Idlib, Turkey opened its borders with Europe to refugees and migrants.

Turkey is home to around 3.6 million Syrian refugees and many other migrants from countries including Afghanistan use Turkey as a transit country to Europe.

It fears another mass influx if Idlib, the last rebel stronghold, falls to Syrian forces.

Thousands of migrants have massed at the Turkish-Greek border since Erdogan gave them the green light to try to enter Europe, leading to clashes with Greek police.

Erdogan criticised the Greek response, saying: "The Greeks -- who are resorting to any means to stop refugees coming into their country, even drowning them or killing them with live ammunition -- they shouldn't forget they might need this same mercy one day."