Greece's energy and environment minister says the government is temporarily halting work at a Canadian-run gold mine in northern Greece after determining the company had violated some terms.

Panos Skourletis said Wednesday that Hellenic Gold, a subsidiary of Vancouver-based Eldorado Gold, had violated the terms of technical studies, and that the revocation of those studies approvals meant work in the mine's Skouries area was being temporarily halted. He didn't provide further details. The company wasn't immediately reachable.

The mining project has been deeply controversial and met with fierce resistance from those saying it will irreparably damage the environment. But as a major foreign investment, it has been seen as a test case in Greece's ability to attract international investors as it battles a deep financial crisis.