Iran has threatened to boycott the World Cup after US strikes killed Supreme Leader Ayatollah Ali Khamenei.

The United States, a co-host of the FIFA World Cup alongside its ally, Israel, executed a joint military operation that killed Khamenei and the country's military hierarchy.

Not only did the attacks, which intensified over the weekend, lead to the demise of Khamenei, but major cities, including Tehran, the capital was also hit.

Truno vowed to “hit them with a force that has never been seen before!”

Iran’s government retaliated to the strikes by firing missiles at targets in neighbouring states, including Saudi Arabia and Qatar. British jets were launched to protect allied nations from Iranian shells, meaning five of the nations taking part in the finals were involved in the conflict.

The crisis comes just three months before the World Cup in USA, Canada, and Mexico, at which Iran is due to compete.

But Iranian Football Federation president Mehdi Taj has put the country’s involvement in extreme doubt.

He is reported in Marca as saying: “With what happened today and with that attack by the United States, it is unlikely that we can look forward to the cup.” He added: “But the sports chiefs are the ones who must decide on that.” Iran has been drawn in a group with New Zealand, Belgium, and Egypt, with their first fixture slated for the morning of June 16.