Specialist rescue services are working to reach a man trapped underground by a collapse at the Curragh mining complex in central Queensland.

Authorities were called to the complex — just north of Blackwater — about 3pm on Friday after reports of a roof collapse in the complex's Mammoth Underground mine.

At least one other worker was treated for injuries at the scene, but another man remains unaccounted for.

A spokesperson for the mine's operator, contracted by owner Coronado Global Resources, said operations had been suspended at the Mammoth Underground mine until further notice.

"Emergency response teams, in coordination with relevant authorities, are currently undertaking response and rescue activities on site," the spokesperson said.

They say support is being provided to staff affected by the incident.

There are three mines at the Curragh mining complex, including the Mammoth Underground and two open-cut mines.

Coronado Global Resources said in a statement it was providing support to the operator and emergency response teams.

The Curragh mine complex, about 14 kilometres north of Blackwater, has been operating for over 40 years.

It supplies metallurgical and thermal coal to power stations to produce electricity for the state.

There are three mines on site — the Curragh North and South open-cut mines, and the Mammoth Underground mine, opened in late 2024.

While operations have paused at Mammoth Underground, both open-cut mines remain open and operating.

The Curragh mine complex supplies metallurgical and thermal coal to power stations to produce electricity for the state. (ABC News)

A spokesperson for the Mining and Energy Union Queensland said Industry Safety and Health Representative Stephen Smyth was at the site.

"The Mining and Energy Union Queensland is aware of the serious situation unfolding at the Curragh mine site," the statement read.

"We are closely monitoring and will provide support wherever possible to affected workers and their families."

Central Highlands Regional Council Mayor Janice Moriarty said the community was waiting for word. 

"We know the mine rescue teams are highly trained and have all the resources they need to do their very best," Cr Moriarty said.

In a social media post, Federal MP for Capricornia Michelle Landry said her thoughts were with those affected.

"Our mining community is a close-knit one. We look out for each other and safety is always the top priority," she said.

"That's why incidents like this hit so hard."

The Mammoth Underground mine opened at the Curragh complex in December, 2024. (Supplied: Facebook/Mammoth Underground)

According to the Mine Safety Institute of Australia, there have been at least three other mine accidents at the Curragh complex since 2010. 

In August 2010, 55-year-old Sunshine Coast contractor James Brunswick was killed in a vehicle rollover at the Bowen Basin site.

33-year-old tyre fitter from Goondiwindi, Donald Rabbit, died after becoming trapped under a piece of heavy machinery in January, 2020.

In November 2021, 54-year-old dragline operator Clark Peadon was crushed by a large metal plate while carrying out cable work.

The 2021 fatality saw Coronado Curragh fined $80,000 for breaching its health and safety obligations.

Four people died while working at Queensland mines in 2024, with the number dropping to zero last year.

Rescue operations are continuing.