Iran's Supreme Leader Ali Hosseini Khamenei has cast his ballot in the country's presidential elections.
Voters will choose between six candidates to succeed outgoing president Mahmoud Ahmadinejad.
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"I saw a lot of smoke come out from the tail-end of the aircraft. I wondered if it was normal, whether it was just exhaust fumes."
The House of Commons Petitions Committee has said they will keep an eye on the petition and are concerned about fraudulent signatures.
David Cameron will be facing a hostile audience when he meets with leaders from the remaining 27 EU nations this week, writes James Mates.