A watchdog is investigating the alleged disappearance of hundreds of thousands of pounds from a Birmingham-based Christian charity.

The money is understood to have gone missing over a number of years from the Christadelphian Magazine and Publishing Association, which is based in Hall Green.

Its trustees informed the Charity Commission when they discovered alleged financial irregularities.

A charity insider claimed that some of the money should have been paid into a pension fund for staff members and that the pension firm has also been called in.

The source added: “I understand that this involves a very large sum of money and there will be victims.”

A spokeswoman for the Charity Commission said: “The Christadelphian Magazine and Publishing Association reported a serious incident to the Charity Commission in October 2011 concerning financial irregularities within the charity.

“The trustees advised us they were conducting an internal investigation into the irregularities and had taken steps to review the charity’s financial controls and governance.

“We have recently received further information from the charity about their internal investigation, which we are currently considering.

“We are not currently aware of any police involvement, however this is something we will take into consideration when looking at the information from the charity about their internal investigation.”

A spokesman for the Christadelphian Magazine and Publishing Association said: “We have handed over a report to the Charity Commission and under legal advice we have completed all of the reporting that they needed in great detail.

“We are awaiting a response from the Commission and are not in a position to add anything further.”

A spokeswoman for West Midlands Police said there was no current investigation relating to The Christadelphian Magazine and Publishing Association.

The magazine has been published since 1869 and is distributed to Christadelphian religious groups around the world from the group’s base in Shaftmoor Lane.

A description of the charity, on the Commission website, says it promotes the Christadelphian faith by publishing magazines, pamphlets, books and by providing other literature information and advice.

The charity has nine employees and its latest financial documents show that it has an income of £848,000, of which £564,000 was from voluntary donations and a further £275,000 was from charitable activities.

It spent a further £363,000 last year on charitable spending and has assets worth nearly £1.5 million.