French energy company TOTAL says that it has stopped petrol deliveries to Iran amid growing international pressure over Iran's nuclear programme. TOTAL confirmed the move days after the U.S Congress passed unilateral sanctions that could punish companies doing business with Iran. The sanctions still have to be signed into law by the US President Barack Obama. The U.S and some allies believe Iran is seeking a nuclear weapon. Tehran says its nuclear programme is peaceful. It is not clear how much petrol TOTAL had been supplying to Iran. Other companies have already taken similar action to TOTAL in anticipation of the measure passed by Congress.