Pro-Europe parties have secured a big win in an election in Ukraine.

Early figures from the vote count show that  President Petro Poroshenko's bloc and the party of his ally, Prime Minister Arseny Yatseniuk, were both taking over 21 percent of the votes cast from a field of 29 competing parties.

Both men said they expected other parties to join their coalition talks.

There was no voting in eastern areas controlled by pro-Russian separatists who plan to hold their own elections next Sunday.

As a result, a number of parliamentary seats in the Donetsk and Luhansk regions will remain vacant, as will those for Crimea, which was annexed by Russia in March.