Iran launched a new wave of attacks on Thursday, with explosions reported in the region and Tehran threatening that the U.S. would “bitterly regret” sinking an Iranian warship.

Iran’s strikes on Thursday targeted Israel, American bases and countries in the region. Israel announced multiple incoming missile attacks as air raid sirens blared in Tel Aviv and Jerusalem.

Azerbaijan’s Ministry of Defense on Thursday said that Iran used unmanned aerial vehicles (UAVs) in an attack on Nakhchivan International Airport and other civilian infrastructure. The ministry said that the details of the attack and the capabilities of the UAVs were being investigated.

“The Ministry of Defense of the Republic of Azerbaijan strongly condemns the attacks carried out by the armed forces of the Islamic Republic of Iran against civilian infrastructure on the territory of Azerbaijan in the absence of any military necessity. The Islamic Republic of Iran bears the entire responsibility for the incident,” the ministry’s statement read.

Iran has not acknowledged targeting Azerbaijan, despite the country’s ministry of defense pointing the finger at Tehran.

Qatar evacuated residents near the U.S. Embassy in Doha on Thursday, with its Ministry of Defense confirming that the country was “subjected to a missile attack” and that its air defense systems were able to intercept it. The ministry urged the public to remain calm and avoid unofficial information.