DOHA: Amir H H Sheikh Tamim bin Hamad Al Thani, and Deputy Amir H H Sheikh Abdullah bin Hamad Al Thani sent yesterday cables of congratulations to President of the Cooperative Republic of Guyana H E Dr. Mohamed Irfaan Ali on the occasion of his country’s National Day. Prime Minister and Minister of Interior H E Sheikh Khalid bin Khalifa bin Abdulaziz Al Thani also sent a cable of congratulations to Prime Minister of the Cooperative Republic of Guyana H E Mark Phillips on the occasion of his country’s National Day.