A trip to the global climate change summit in Scotland by Walter Roban, the Deputy Premier, cost taxpayers more than $9,000, new figures reveal.

The bulk of the money — $5,546.60 — went on air travel, with accommodation costing $3,156.30 and ground transportation $330.53.

The home affairs minister did not claim for any meals during his 12-day visit to the UK which ended on November 11.

Voters have still to be told the cost of a high-profile international trip by David Burt, the Premier, despite government assurances that it would “continuously” update information about ministerial expenses overseas.

Mr Burt attended a gathering of the leaders of the UK Overseas Territories and British ministers in London last month.

The money spent on such trips is usually posted on the Travel Calendar section of the Government’s website.

When the register was revamped in October 2017, the Government promised that it would give a rapid insight into how public money was being spent by ministers.

Lovitta Foggo, the Minister for the Cabinet Office at the time, said at the relaunch: "I am pleased to reintroduce the minister's travel expenses page on the government website. The new page contains current and historic information and will be continuously updated as ministers travel overseas.

"I am committed to full transparency and this page will detail the location and reason for a minister's international travel together with how much they spent while travelling."