Explosions were heard at a US military base in Qatar, Tasnim reported.
Qatar previously reported the interception of a drone aimed at the US Al Udeid air base.
The country's authorities have declared a high alert and advised residents not to leave their homes, according to a statement from the emirate's Ministry of Interior.
An Iranian strike on Bahrain was aimed at buildings housing officers from the US Navy's Fifth Fleet, Tasnim reported.
Powerful explosions were heard in Kuwait, Al Jazeera reported.
The country's air defense forces repelled a missile attack, and its debris caused “only minor damage”, the Defense Ministry said.
Kuwait said 67 of its soldiers had been injured since Iran launched strikes on the emirate.
Oil production at the Sarsang field in Iraqi Kurdistan, operated by the US company HKN Energy, has been halted after a drone attack, according to Karvan Baban, a security adviser at the regional oil ministry.
Iran struck two hotels and a residential building in Bahrain's capital, Manama, the kingdom's Interior Ministry said.
Iranian air defense systems destroyed an Israeli Heron reconnaissance drone targeting targets in Isfahan, the Tasnim news agency reported.
Iran said it had fired approximately 600 missiles and more than 2,000 drones at Israel and US targets in the region since the start of the conflict.
Further explosions were heard in several areas of Tehran. According to the Fars news agency, they may have been caused by missile attacks and airstrikes.
The spokesman for the Islamic Revolutionary Guard Corps, General Ali Mohammad Naini, said that Iran was prepared for a prolonged war.
The Israeli Air Force carried out airstrikes in western Iran, Al Hadath reported.