The race to pick a Democratic candidate to face US President Donald Trump has got off to a disastrous start.
Results from the Iowa caucuses has been delayed due to "inconsistencies".
The Iowa Democratic Party stressed there was not a "hack or intrusion" and added it expected to "have numbers to report later today [Tuesday]".
Voting had undertaken in more than 1,600 schools, libraries and churches on Monday.


Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Ukraine peace talks stretch into second day at start of pivotal week for Europe
Flash floods kill at least 37 people in Morocco's Safi province
'Hero' who disarmed Bondi gunman recovering after surgery, family says
School bus accident in Colombia kills 17, injures 20