Foreign ministers of Iran and the five world powers still party to its nuclear deal will meet in Vienna on Friday, Iranian state news agency IRNA reported on Tuesday. They will discuss ways of maintaining the deal after the withdrawal of the United States. The meeting will be held at the request of Iran. The foreign ministers of Iran and five world powers will discuss a proposed European package and measures to protect the agreement, according to the report. The US President Donald Trump withdrew the US from a 2015 international deal to curb Tehran’s nuclear program in exchange for lifting some sanctions.