ATHENS, Greece — Wildfires intensified across southern Europe on Wednesday with a round-the-clock battle to protect the perimeter of Greece’s third-largest city and at least three deaths reported in Spain, Turkey and Albania.

Wildfires intensified across southern Europe Wednesday, with a round-the-clock battle to protect the perimeter of Greece's third-largest city and at least three deaths reported in Spain, Turkey and Al

Firefighting resources are stretched thin in many countries after weeks of temperature spikes across the Mediterranean region.