An Iranian official threatened retaliation on Monday after Germany, Britain and the United Arab Emirates refus to provide fuel to Iranian passenger planes following unilateral U.S. sanctions on the Islamic state, the ISNA news agency reported.
"Since last week, our planes have been refused fuel at airports in Britain, Germany and U.A.E. because of the sanctions imposed by America," Mehdi Aliyari, Secretary of Iranian Airlines Union, told ISNA news agency.
In an effort to persuade Iran to curb its nuclear activities, the United Nations Security Council has imposed sanctions on the Islamic state since 2006.
U.S. President Barack Obama on Thursday signed into law far-reaching sanctions on Iran that aim to squeeze the Islamic Republic's fuel imports and deepen its international isolation.
"With these sanctions - along with others - we are striking at the heart of the Iranian government's ability to fund and develop its nuclear programs," Obama said at a White House ceremony, before signing the sanctions into law.
"We are showing the Iranian government that its actions have consequences, and if it persists, the pressure will continue to mount, and its isolation will continue to deepen.
"There should be no doubt - the United States and the international community are determined to prevent Iran from acquiring nuclear weapons."
The European Union has also decided to implement additional measures. Although it is the world's fifth-largest oil producer, Iran lacks sufficient refining capacity which makes it potentially vulnerable to sanctions.
The United States and its European allies fear Iran is trying to build bombs under cover of a civilian nuclear program. Iran says it needs nuclear technology to generate power.
A lawmaker said Iran will retaliate. "Iran will do the same to ships and planes of those countries that cause problems for us," ISNA quoted Heshmatollah Falahatpisheh as saying.