The number of Syrian refugees entering Turkey has exceeded Ankara's "psychological limit" of 100,000, officials said, underscoring concerns that the country might not be able to cope with a flow of people that shows no sign of abating.

There are now 100,363 Syrians at 14 camps along the (565-mile border between Turkey and Syria, the Turkish Disaster Management Agency, or Afad, said Monday. They are part of a wave of 300,000 Syrians in Lebanon, Jordan and Iraq who have been displaced by the shifting front lines of Syria's conflict....