NEW YORK (CBSNewYork) – New York City officials have a very simple warning for people in Central Park – stay off the ice!

Pictures taken over the weekend captured people walking on one of the ponds in the Manhattan park, despite temperatures that were hardly in the freezing zone.

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The city’s parks commissioner warns that while the New York City’s lakes and ponds look frozen over, many are not, especially when temperatures reach into the 50’s like Monday.

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FLASHBACK: People Defy Warning Signs, Walk On Semi-Frozen Pond In Central Park

Safety signs are posted and officials ask that you obey them for your own safety.

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This year six summons have been issued in Central Park.