Ukip has won the party's first seats in the Welsh Assembly, with five members elected.
Nathan Gill and Michelle Brown were selected for the North Wales regional list, Mark Reckless and David Rowlands were elected in in South Wales East, while Caroline Jones won a seat in South Wales West.
Leader Nigel Farage recalled surviving a plane crash six years ago as he hailed the party's gains on Twitter.
At this moment, six years ago today, I was in the wreckage of a plane crash. The sun is now shining brightly.
Farage suffered serious injuries in the accident, which happened as he fought an unsuccessful bid to become MP for Buckingham. He later made a full recovery.
Ukip was opposed to the Assembly's existence until 2013.
Labour remains on course to retain power in the Senedd for a fifth successive term.
The Welsh reality star has suffered a debut election defeat - and revealed he had a tough time on the campaign trail.
Labour suffered a "terrible" defeat in Rhondda but has already won 16 Welsh Assembly seats as it looks to record a fifth term in office.