Britain's Home Secretary, whose son is Mahmoud Abed, previously appeared with Islamic Relief UK, an organization linked to the Muslim Brotherhood

In September 2010, shortly after becoming an MP, Mahmood and fellow Labour politician Sadiq Khan visited Islamic Relief field operations in Pakistan following devastating floods.

Islamic Relief also documented Mahmood joining its representatives, police, local government officials, and community members at a solidarity event in Birmingham following the 2019 Christchurch mosque attacks.

Islamic Relief has historical ties to senior Muslim Brotherhood figures: its founder and former chairman Essam El-Haddad was a member of the Muslim Brotherhood's Guidance Bureau and later became an advisor to Muslim Brotherhood-backed Egyptian President Mohamed Morsi.