There is confusion in Thailand over the outcome of the first election in the country since the army took power in a coup in 2014.
The Election Commission (EC) initially said the pro-military party, the Palang Pracha Rath Party, was leading the popular vote.
That would position it to form a government under the current prime minister, General Prayuth Chan-ocha.
But there are growing complaints about irregularities and inaccurate data.
Late on Sunday, after polls closed, the EC had said that with more than 90% of ballots counted, the Palang Pracha Rath Party (PPRP) had gained 7.6m of the popular vote.
That is half a million more than Pheu Thai, the party linked to former Prime Minister Thaksin Shinawatra, whose loyalists have won every election since 2001.
However, the EC delayed a full announcement without giving any explanation.
By Monday, several local media reports, citing figures from the EC, had different results for the number of seats each party had won.
At a press conference on Monday, where it was expected to clarify the preliminary results, the EC instead again delayed announcing them, promising more information later in the day – but no full official results until 9 May.