The Orange Democratic Movement (ODM) party leadership led by Raila Odinga, has left the country for what he described as a 'brief mission' abroad.
Raila was accompanied by his deputy party leader and former Mombasa Governor Hassan Joho and National Assembly Minority Whip Junet Mohamed.
The three left the country on Monday night.
Raila in a post on his X account revealed that before their departure at the Jomo Kenyatta International Airport, they met the World Bank President Ajay Banga where they engaged on prospects for Africa's growth.
"Last night at JKIA, we met with World Bank President Ajay Banga on the prospects and projections for Africa's growth. We were on our way out of Nairobi for a brief mission abroad and will be back in the course of the week," the former Prime Minister said.
Details of Raila, Joho and Junet's departure was first made public via a communication from Azimio affiliate party Kanu's X account.
Their destination, however, remains unknown.
The party said it's party leader Gideon Moi who was on his way to Rome, for the son's wedding had bumped into the former PM with Joho and Junet on a Dubai bound plane.
The party said Moi wished Raila well in his quest to become the Chairperson of the AU Commission.
"Hon Gideon Moi departed the country yesterday for Rome where he bumped into Raila Odinga, Hassan Ali Joho and Junet Mohamed in a Dubai-bound flight. The four had a splendid time together, catching up on many issues affecting the country," the post reads.
"Raila, Joho and Junet conveyed their greetings and blessings to Hon. Moi's son, Kigen ahead of his white wedding ceremony in Rome this weekend. Hon. Gideon Moi also wished Hon. Odinga success in his bid to become the Chairperson of the AU Commission," Kanu's post reads.
On Monday, Raila spent a good part of his day at the International Development Association (IDA21) Summit in Nairobi.
The Summit, which was on its second day, brought together African Heads of state and government from at least 20 countries in the continent.
Raila is seeking to become the next African Union Commission chairperson and the gathering of African leaders provided an opportunity for him to ask for their support.