JAKARTA (Reuters) - Indonesia's energy ministry will allow Freeport McMoRan Copper and Gold Inc to resume some operations at the world's second biggest copper mine, a ministry spokesman said on Saturday.

"The decision was made by the Energy and Mineral Resources Ministry last night that Freeport can resume open-pit mining," said spokesman Susyanto, who goes by one name, like many Indonesians.

The Grasberg mine was shut after a training tunnel collapsed in mid-May, killing 28 people.

(Reporting by Kanupryia Kapoor, Michael Taylor and Fergus Jensen; Writing by Randy Fabi; Editing by Clarence Fernandez)