Former Prime Minister Raila Odinga's ODM party has resolved to exit Nasa.
The Orange party announced on Thursday that it will write to the Registrar of Political Parties communicating its decision to exit the four-year-old coalition.
ODM Secretary General Edwin Sifuna made the announcement after a NEC meeting chaired by Raila.
"We still hold that Nasa is the past. To further demonstrate this point, the NEC of ODM has today resolved to formally exit the Nasa coalition," Sifuna said.
Sifuna said the party is in the process of courting future friends and will soon be hitting ground in regional tours.
"We intend to embark on a programme to build new partnerships and extend the ongoing talks with our potential partners to the grassroots."
Sifuna was accompanied by ODM chairman John Mbadi, MPs Opiyo Wandayi (Ugunja) and Dennita Ghati (nominated) among other NEC members.
The announcement comes days after Wiper party, led by Kalonzo Musyoka, announced it was exiting the alliance.
Raila and Kalonzo are said to be renegotiating a new 2022 power deal that could see them work together again.
The Star has established that away from the glare of the cameras, the two are convinced that if they part ways, they would be handing Deputy President William Ruto the key to State House.
However, there are also efforts to bring on board ANC leader Musalia Mudavadi although he is said to be the most “difficult” of all the One Kenya Alliance chiefs.