Moscow is unaware of the missing Israeli-Russian academic Elizabeth Tsurkovs Russian citizenship and has not been approached by her relatives, the countrys ambassador in Iraqsaid Monday.Israeli Prime Minister Benjamin Netanyahus officesaid Wednesday that Tsurkov an Israeli-Russian dual citizen was being held by a pro-Iranian Shiite militia in Iraq, where she had gone missing several months before.Russias Ambassador in Baghdad Elbrus Kutrashev told the state-run news agency RIA Novosti that he had not received any appeals from Tsurkovs family or friends.I dont know whether she is really a Russian citizen or not, where she came from and whether she entered Iraq or not, Kutrashev said.He added that the embassy has not contacted the Iraqi government on Tsurkovs disappearance.The Kremlinvowed last week to inquire with Russias Foreign Ministry on taking steps to protect Tsurkovs interests.Russias Foreign Ministry has not commented on Tusrkovs disappearance.An anonymous Russian sourcequoted by the Kommersant business daily characterized the Israeli government's assertion that Tsurkov had arrived in Iraq on her Russian passport for research as a provocation.She has been living in Israel since 1990, associated herself with that very country, her relatives did not turn to Russias Foreign Ministry for help, Kommersant quoted the source as saying.They chose which country to live in, and this is the answer to all questions, the source added.The Iraqi governmentsaid last week it had opened an investigation into Tsurkovs kidnapping in March.Russias Foreign Ministrytold AFP in late April that the Russian embassies in Iraq and Iran did not have any information about Tsurkovs Russian citizenship or whereabouts.AFP contributed to this reporting.