Tiny frogs swarm on the side of the Egnatia highway in northern Greece. Officials closed the key northern highway for two hours near the town of Langadas after what police called "a carpet of frogs" covered the road. (AP Photo/Aggelioforos, Pavlos Makridis)
Thessaloniki traffic police chief Giorgos Thanoglou says "millions" of the amphibians covered the tarmac near the town of Langadas, some 16kmeast of Thessaloniki.
"There was a carpet of frogs," he said.
Authorities closed the highway after three car drivers skidded off the road trying to dodge the frogs.
No human injuries were reported.
Thanoglou said the amphibians probably left a nearby lake to look for food.
