A、It released a lot of harmful gases. B、Part of its dam wall collapsed. C、It was destroyed by an earthquake. D、Some miners were

Operations at one of Australia’s largest gold mines had to be temporarily suspended on Friday after a partial wall collapse at one of the mine’s dams. The wall collapse at the Cadia mine came just a few days after two earthquakes hit the area. The damage to the dam wall was noticed in the late afternoon on Friday, when workers found a section of the northern dam wall had collapsed into the southern dam. The dams contained waste products of mining and can contain materials which are harmful to the environment and human health. The dams are generally constructed using earth-fill, and are gradually raised over time. The company was unable to confirm whether the recent earthquakes had contributed to the dam’s wall collapse, but said it was conducting a thorough investigation. A company spokesperson said that operations at the site had been halted while the investigation is ongoing, and that the break had posed no safety threat to workers.
    1. What happened at one of Australia’s largest gold mines?
    2.   What did the spokesperson say about the incident?