The three-day summit begins on Tuesday and will aim to demonstrate the commitment of President Biden's administration to the continent, according to organisers.

A total of 49 heads of state and African Union Commission Chairperson Moussa Faki Mahamat have been invited to the summit.

Mali, Guinea, Sudan and Burkina Faso - which are suspended by the African Union - were not invited. Eritrea was also excluded.

Some African leaders have been tweeting about their departure to the summit:

https://twitter.com/KagutaMuseveni/status/1601904895904387075

https://twitter.com/HHichilema/status/1601866095354322946