Jubilee Party secretary general Raphael Tuju has cancelled nominations across the country after confusion and delays marred the first day.
"Out of the interest of our party ... no voting should go on in all the counties," he told journalists on Friday evening.
He said the decision was made in consideration of the safety of voters and aspirants, adding that a new schedule will be available on Saturday.
Tuju had initially cancelled nominations in 11 counties including Nandi, Kericho, Baringo, Bomet, Trans Nzoia ,Nakuru, Embu, Nandi, Uasin Gishu, Narok and Kajiado.
Some constituencies in Kiambu, Meru, Laikipia and West Pokot had also been affected.
Tuju admitted that there was mistake on their part when the ballot papers were delivered.
"When the ballot papers were delivered, we should have counted them one by one," he said noting that so far nobody has been caught with fake ballot papers.
Tuju said they will continue to monitor the integrity of the process as voting continues in some counties.
Only Murang'a, Nyeri and Nyandarua are fully voting.
President Uhuru Kenyatta had summoned Tuju and other party officials to explain incidents of delay and chaos during the primaries.
Earlier, aspirants cancelled the primaries indefinitely in most counties following an acute shortage of ballot papers.
This happened despite Tuju reaffirming that the primaries have not been cancelled.
In Elgeyo Marakwet, county elections board members accused top Jubilee elections board officials of not responding to their concerns.
Barnabas Lagat, county elections board chair, said they noticed the papers were insufficient when they were dispatched on Thursday.
The exercise was also called off in Baringo after a shortage of ballot papers .
County elections board chair Bernard Lotole said the exercise was suspended until further notice.
In Kirinyaga county, voting did not take off as planned amid allegations that ballot papers had been stolen.
Jubilee Party county coordinator Martin Mwangi denied the claims.
In Murang'a, the exercise delayed after ballot boxes were reported missing in various polling stations.
A presiding officer at Ikindu in Maragua constituency said ballot papers were stolen from his car which was parked at the polls venue.
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