(CNN)-- Iran's Revolutionary Guard announced on Sunday the closure of the Strait of Hormuz "until further notice," stating that no ship will be allowed to pass.

A statement published by Iranian state media said that "several ships tried to sail in an unauthorized route, ignoring warnings... consequently, one of the ships was subjected to warning fire which caused it to stop."

The statement added that "due to the emergence of this unstable security situation because of illegal foreign intervention, the Strait of Hormuz will be closed until further notice and until the end of American interventions in this region, and no ship will be allowed to pass through it."

The Iranian Revolutionary Guard also indicated that if "the aggressor makes a mistake and launches a new aggression against us, using the incident he himself caused as a pretext, we will respond forcefully, and we will target the enemy's new bases in the region," in reference to the United States.

US President Donald Trump indicated on Friday that the United States and Iran would continue truce talks, despite the US launching airstrikes despite a ceasefire.

CNN has reached out to the White House for comment.

The incident comes as a source familiar with the negotiations told CNN on Saturday that Oman has prepared a proposal to manage navigation traffic in the Strait of Hormuz through two corridors, northern and southern, with separate administrations.

The proposal, whose details have not been finalized, stipulates that both corridors remain open, with the southern corridor passing through Omani territorial waters allowing freedom of navigation as before the war.

As for ships passing through the northern corridor, which runs through Iranian territorial waters, they will need prior approval from Iran, noting that no fees will be imposed under the agreement.

This comes after Iranian Foreign Minister Abbas Araghchi's visit to Muscat earlier on Saturday, where he held talks with his Omani counterpart Badr al-Busaidi on diplomatic efforts and the situation in the Strait of Hormuz, according to the official Omani news agency.

The two officials discussed efforts to ensure safety and freedom of navigation in the strait "in light of the circumstances and repercussions resulting from recent developments," according to the agency.

The agency reported that the two sides agreed to hold further technical and political talks.