Demonstrators brandishing Molotov cocktails, fireworks and clubs have taken to the streets of Athens.
Security forces are holding them back in some areas of the city with water cannon and shields.
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A shot of a lizard using its tongue to grab dinner has snatched a top photography award.
One story dominates Thursday's front pages with some newspapers printing emotive pleas to voters to keep the United Kingdom as one.
After a mild start temperatures should pick up, with the south of England seeing highs of 26C.