Saudi Arabia was pressing for a United Nations General Assembly vote Friday on a resolution condemning an alleged plot to assassinate its envoy to the United States and called on Iran to cooperate with the investigation.

The
U.S. has said Iran was behind the plot to kill Riyadh 's Washington ambassador, but the Saudi resolution did not directly accuse Iran of involvement.

Abdulmohsen Alyas, a spokesman for the Saudi U.N. mission, said many countries would co-sponsor the resolution but he did not name them.

Iran has strongly denied involved in the alleged plot against the Saudi envoy, Adel al-Jubeir, possibly through the bombing of a Washington restaurant.

The
U.S. has charged an Iranian-American car salesman in the plot and said Iranian officials planned to hire a Mexican drug cartel to kill the Saudi ambassador.

Iran 's U.N. ambassador, Mohammad Khazaei, called the proposed resolution "dangerous" and "unacceptable" in a letter to U.N. leader Ban Ki-moon, according to Iranian media.