As oil markets remain jittery, the cargo seizure is the latest escalation between Washington and Tehran after years of sanctions pressure by the US over Iran’s nuclear program.

Twin attacks in 2017 at Iranian parliament, former leader's mausoleum killed 17

The latest anti-Israel invective came amid heightened tensions between the Jewish state and the Islamic Republic

Top diplomats from Tehran and Riyadh met in Beijing on Thursday to reestablish contacts between the longtime rivals

Tehran must be ready to “take advantage” of the shift in global power, Ayatollah Ali Khamenei said in a speech to officials

Senior Israeli officials have questioned whether Washington would tolerate Iranian nuclear weapons

Tehran says that one of its officers has been “martyred” in a deadly airstrike in Syria

Tehran wants stronger economic ties with Moscow amid Western sanctions, according to its economy minister

Overall, more than 82,000 people were granted amnesty in an announcement marking the anniversary of the Islamic Revolution

Riyadh cut ties after Iranian protesters attacked Saudi diplomatic missions in 2016 following the Saudi execution of revered Shiite cleric Nimr al-Nimr -- just one in a series of flashpoints between the two longstanding rivals.

Many Iranian schoolgirls have been poisoned and are presenting to hospitals with mild to severe symptoms. There is speculation about the cause of these incidents that have been taking place all over Iran for the last few months.

A United Nations resolution bans arms transfers to Yemen’s Iranian-backed Houthi rebels. Tehran long has denied arming the rebels, despite physical evidence, numerous seizures and experts tying the weapons back to Iran.