Iran’s UN envoy accused Israel on Wednesday of plotting and carrying out a suicide attack on a bus in Bulgaria a week ago in which five Israeli tourists were killed.

A suicide bomber blew up the bus in a car park at Burgas airport, a popular gateway for tourists visiting Bulgaria’s Black Sea coast, killing himself, the Israeli tourists and the Bulgarian bus driver and wounding more than 30 people.

Israel has accused Iran and the Lebanese Islamist group Hezbollah of the bombing. Iran has denied the accusations.

“It’s amazing that just a few minutes after the terrorist attack, Israeli officials announced that Iran was behind it,” Iran’s UN Ambassador Mohammad Khazaee told a UN Security Council debate on the Middle East.