Saleh was scheduled to return on Wednesday to take part in the inauguration of his successor Vice President Abd-Rabbu Mansour Hadi.
The Yemeni dictator conceded his three decade rule of the country in November, after receiving immunity from prosecution as part of a deal brokered by the Persian Gulf Cooperation Council.
Yemenis, however, have been staging massive demos to demand the prosecution of Saleh and his aides for the killings of hundreds of protesters since the eruption of popular revolution in the Arab country in January 2011.
Since January 29, Saleh has been in the US, where he has been granted diplomatic immunity.
On January 20, Yemen's parliament approved a law that grants complete immunity from prosecution to Saleh for the crimes committed during his 33-year-long rule.
Human rights groups have called on Washington to prosecute the 69-year-old for the brutal crackdown on anti-regime protests that erupted in Yemen in late January 2011.
Hadi on Tuesday stood as the only candidate in early presidential elections, in which around 60 percent of the country's 10 million registered voters reportedly cast their ballots in the one-man race.
The final result is expected to be announced on Friday.
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Source: Press TV
