Police in Limburg have searched a house as part of an investigation in Germany into the funding of the terrorist organisation Islamic State.

German police raided at least 109 addresses across the country in a large-scale operation on Wednesday morning.

Seven men were arrested on suspicion of being part of an international network that raised at least €65,000 for IS’s activities in Syria, such as helping its members to break out of prison camps.

Police in Limburg confirmed that another suspect was a Dutch national living in the province. His house was searched as part of the operation, but the man has not been traced.

The suspects detained in Germany have variously German, Syrian, Kosovar, Turkish and Moroccan nationality. They are due to appear in court on Thursday.