Iran's Supreme Leader says the nation "will not yield to pressure" over the disputed presidential election.
Ayatollah Ali Khamenei has reiterated that the result would stand.
The BBC reports at least 17 people have been killed in street protests since the poll on 12 June returned President Mahmoud Ahmadinejad to power.
The main protest leader, Mir Hossein Mousavi, has not been seen in public for days, but his website quoted his wife saying protests would continue.
He claims the election was rigged and is demanding a re-run.
Another defeated candidate, the moderate Mehdi Karoubi, reportedly denounced the new government as "illigitimate". He was quoted as saying on his websitethe vote should be "annulled".
Iran has blamed foreign governments for inflaming the protests.