The Eiffel Tower, one of the world’s biggest tourist attractions, was closed on Monday after staff went on strike, unions told AFP.
The strike, which was called to protest the way the monument is financially managed, could be extended, they said.
The operator of the tower, SETE, said on its website that “visits to the memorial will be suspended on Monday”.
He advised ticket holders to check his website before showing up or delay their visit. E-ticket holders are asked to check their email for further information.
This suspension is the second strike at the Eiffel Tower within two months for the same reason.
Unions have criticized operator SETE for its business model, which they say is based on inflated estimates of future visitor numbers while underestimating construction costs.
The Eiffel Tower – the most famous landmark in Paris – attracts almost seven million visitors annually, about three-quarters of whom are foreigners.