Brazilian football star Neymar Jr. was handed a hefty fine Monday after local authorities found that his sprawling beach house violated environmental rules.

Neymar was fined 16 million Brazilian reais (about $3.33 million or €3.05 million) for illegally building an artificial lake at his property.

The mansion, estimated to be worth millions, is located in the coastal town of Mangaratiba on the south coast of Rio de Janeiro state in Brazil.

Project violates rules regarding freshwater sources

Authorities found several environmental violations at the luxury property, where workers were building an artificial lake and beach.

It included "carrying out work subject to environmental control without authorization," capture and diversion of river water without authorization, and "removal of land and suppression of vegetation without authorization."

Authorities cordoned off the site last month and ordered all activity to cease, but Brazilian media reported that Neymar threw a party there and bathed in the lake.

On top of the fine, the case will also be investigated by other environmental control bodies. including the local attorney general's office, the state civil police environmental protection office

Neymar's spokesperson has declined to comment on the matter.