Guinea Bissau President Umaro Sissoco Embaló has called for the amendment of the country's constitution, and set up a committee to come up with a proposal.

Last month, the Economic Community of West African States (Ecowas) acknowledged Mr Embaló as the winner of the Guinea Bissau re-run held on December 29 and urged him to form a government.

"After a deep analysis of the country's political situation, the regional heads of state decided to recognise Mr Umaro Sissoco Embaló victory of the December 29 presidential re-run", Ecowas said in a statement

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"Bissau Guinean political actors have to work in an inclusive and constructive way to implement Ecowas relevant decisions particularly in forming a new government and the appointment of a new prime minister," he said in a statement.

The Africa Union also congratulated Mr Embaló and urged Bissau Guinean politicians to adhere to Ecowas decisions and work for the country's stability.