An assailant attacked the Cuban Embassy in the United States capital of Washington, DC with two Molotov cocktails, Cuban Foreign Minister Bruno Rodriguez Parrilla said on social media, adding that nobody was hurt.

The attack occurred on Sunday night just hours after Cuba’s leader Miguel Diaz-Canel returned to the island, having attended events at the United Nations in New York last week.

No one took responsibility for the attack, which caused no significant damage or casualties, according to Cuban officials, although Havana quickly pinned blame on Cuban exiles in the US.

“Anti-Cuban groups turn to terrorism when they feel impunity, something Cuba has repeatedly warned US authorities about,” Rodriguez said on X, formerly known as Twitter.

Cuba’s President Diaz-Canel denounced that attack and said he was awaiting “action from the North American authorities”.

“Hatred once again last night caused a terrorist attack against our embassy in Washington, an act of violence and weakness that could have cost precious lives,” he wrote on X.

The Cuban leader’s appearance last week at the UN was met with demonstrations by opponents of the Communist government in Havana founded by Fidel Castro.

White House National Security Adviser Jake Sullivan said on Monday that the US strongly condemned the reported attack.

“We are in contact with Cuban embassy officials and law enforcement authorities to ensure an appropriate and timely investigation as well as to offer our support for future protective efforts,” he said in a statement.

US State Department spokesman Matthew Miller told reporters that his department was coordinating with Washington, DC police in the investigation.