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The shiny green liquid in Venice's famous Grand Canal, which appeared yesterday, is not dangerous, according to initial findings.

The news was shared today on Twitter by Luca Zaia, governor of the Veneto region, where Venice is located.

Part of Venice's Grand Canal turned green

Experts from the environmental protection agency ARPA Veneto announced after reviewing the samples that the green liquid was probably an organic substance for coloring.

It is used for checks on water content or for research in caves, Zaia said, adding that there was no risk of water contamination.

However, the governor criticized the fact that Venice has become a "springboard for activism".

The green spot appeared yesterday morning near the famous Rialto Bridge. It may be related to a protest by environmental activists who recently organized actions in popular places in Italy, but so far no one has claimed responsibility, DPA and BTA noted.