London , England -LRB- CNN -RRB- -- There are `` compelling reasons '' to believe the Israeli government was responsible for forging British passports used in a plot to kill a Hamas leader in the United Arab Emirates earlier this year , British Foreign Secretary David Miliband said Tuesday . `` Such misuse of British passports is intolerable , '' Miliband said , adding that the fact that Israel was an ally of the United Kingdom `` only adds insult to injury . '' The passports were `` copied from genuine British passports '' in a `` highly sophisticated operation , '' indicating a government was behind it , Miliband told the House of Commons . Britain 's Serious Organised Crime Agency concluded that the 12 British people whose passports were cloned where `` wholly innocent victims of identity theft , '' the foreign secretary said . The UK expelled an Israeli diplomat and changed the advice it gives its citizens about traveling to Israel as a result of the scandal , Miliband said . He did not name the diplomat or say what rank the envoy held . `` The UK had absolutely no advance knowledge of what happened in Dubai nor any involvement whatsoever in the killing '' of Mahmoud al-Mabhouh , he said . Israeli Foreign Minister Avigdor Lieberman complained that the Israelis `` have not been given any evidence pointing to Israel 's involvement in the affair . '' `` We attribute great importance to our relations with Great Britain , '' he said . `` We maintain several different and sensitive dialogues with the UK , and we regret the British decision . '' French authorities also have opened an investigation into the alleged use of forged documents , the Paris prosecutor 's office said Tuesday . Suspects in the killing allegedly used four doctored French passports , the prosecutor said in a written statement . `` Further investigation has revealed that these four passports were actually false as the photos did not correspond to the names appearing in each document , '' the statement said . Al-Mabhouh , a founding member of Hamas ' military wing , was found dead January 20 in his Dubai hotel room . Police believe he was killed the night before , allegedly by the secretive Israeli foreign intelligence unit Mossad . Two sources told CNN earlier this month that the number of identified suspects in al-Mabhouh 's death was up to 27 . Of them , 26 were carrying European or Australian passports , authorities have said . The sources -- an official familiar with the investigation and a police source -- did not say which nation issued the passport used by the 27th suspect . The 27 suspects are believed to have acquired false passports to travel to Dubai for the killing , then scattered to several far-flung locations afterward . But Lt. Gen. Dahi Khalfan Tamim , Dubai police chief , has said not all the suspects had fraudulent passports -- `` We know some of the names are real . '' Interpol , the international police agency , has issued `` red notices '' to help search for the suspects . The notices are not international arrest warrants , but are a way of alerting police forces around the world that the suspects are wanted by United Arab Emirates authorities . Interpol expands search for suspects Interpol Secretary-General Ronald K. Noble said investigators have established `` clear '' links through passport records , video surveillance , DNA analysis , witness interviews and hotel , credit card , phone and transport records , according to a statement . Police have said toxicology results show al-Mabhouh was injected with succinylcholine , a drug used to relax muscles during surgery or as an anesthetic , before he was suffocated . Signs indicated that al-Mabhouh resisted as he was being suffocated , police said . Al-Mabhouh 's family members were told earlier that police had found blood on a pillow . Authorities have also said the killers left some of al-Mabhouh 's medication next to him in an apparent effort to make the death appear natural . But `` the medication left next to him in the room has nothing to do with the killing , '' Tamim has said . Tamim told CNN last month that he is `` 100 percent sure '' Mossad was responsible . `` The Mossad needs to be ashamed of its actions , '' he said . `` They sent 26 , 27 persons to assassinate one man who was involved in the capturing and killing of two Israeli soldiers . '' Dubai police : Mossad should be ` ashamed ' Hamas has said al-Mabhouh was behind the 1989 deaths of the Israeli soldiers . Israel has a stated policy on security matters of neither confirming nor denying involvement . Lieberman , however , told Israel Army Radio earlier this month , `` There is certainly no reason to think that the Mossad and not some other intelligence agency of another country operated there . '' The total of 27 suspects does not include two Palestinians arrested in Jordan and returned to Dubai . Tamim said one is not believed to be directly involved in al-Mabhouh 's death , but `` he is wanted by one of the Palestinian factions in the Palestinian territories and he is sentenced to death and that 's why we will extradite him . '' He declined to discuss anything about the other Palestinian . CNN 's Guy Azriel in Jerusalem and Niki Cook in Paris , France , contributed to this report .