By Ece Toksabay BODRUM (Reuters) - Turkish authorities stopped 57 people trying to cross to the Greek island of Kos on Thursday night, as migrants trying to reach Europe remained undeterred by the drowning of two toddlers this week on the same route. Images of the tiny body of 3-year old Aylan Kurdi washed up on a beach near the Turkish resort of Bodrum sparked a global outpouring of sympathy, and shocked European governments into renewed focus on tackling the migrant crisis. Coastguards halted three boats carrying 57 Syrians, Afghans and Pakistanis late on Thursday, impounding the vessels and taking the passengers back to Turkey, where they spent the night sleeping under blankets in the yard of the coastguard building.