(CNN) -- Britain is withholding a multimillion-dollar aid payment to Rwanda over allegations that it is backing rebels who have been fighting government forces in neighboring Democratic Republic of the Congo, a minister said Friday. The M23 rebel group seized the city of Goma in eastern DR Congo 10 days ago after days of heavy clashes with government forces. Read more: Why the world is ignoring Congo war Since then, regional leaders and the African Union have drawn up a plan under which the fighters would withdraw. But despite indicating that they would leave, M23 forces remained in Goma on Friday.
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Britain stops a $33.6 million aid payment to Rwanda over claims that it backs M23 rebel group
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Rwanda's foreign minister says the British decision is based on false allegations
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The rebel group seized a city in eastern Democratic Republic of the Congo last week
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More than 140,000 people have been forced from their homes by the fighting
"We are committed to finding lasting solutions to the conflict in this region and will work with the governments of Rwanda and @placeholder to secure a peaceful resolution to the situation in eastern DRC."
Mixed signals have come from @placeholder leaders and soldiers this week.