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A timeline of escalation in the Gulf

Washington reimposed sanctions on Iran last year after quitting a 2015 deal

By AFP - Jul 11,2019 - Last updated at Jul 11,2019

DUBAI — Tensions in the Gulf region have escalated in recent weeks amid a deepening standoff between Iran and United States over Tehran's nuclear programme.

Here is a recap:

 

 ‘Credible threat’ 

 

On May 5, the United States says it is sending an aircraft carrier strike group and a bomber task force to waters near Iran in response to “indications of a credible threat by Iranian regime forces”.

The Pentagon also sends B-52 bombers to the region and, later, an amphibious assault ship and Patriot missile defence battery.

US officials do not give more details of the threats but the move comes amid heightened tensions over Iran's nuclear programme.

Washington reimposed sanctions on Iran last year after quitting a 2015 deal meant to control its nuclear drive.

On May 8, Iran announces a halt to certain commitments under the agreement, including increasing enriched uranium and heavy water production.

US President Donald Trump responds with new sanctions on Iran's steel and mining sectors.

 

Tanker ‘sabotage’ 

 

On May 12, the United Arab Emirates says four commercial oil tankers had been targeted by "acts of sabotage" in Gulf waters off its coast.

Saudi Arabia says later two of its oil tankers suffered "significant damage" but no casualties or oil spill. 

The other vessels were Norwegian and Emirati.

Washington and Riyadh blame Tehran, which denies involvement.

A UAE investigation finds later that a "state actor" was likely responsible for the attacks, probably carried out by limpet mines, but does not specifically blame Iran.

 

 Tankers in flames 

 

In the early hours of June 13, two fuel-loaded tankers passing through the Strait of Hormuz towards the Indian Ocean are hit by mysterious blasts that cause major fires.

One is a Norwegian vessel and the other is Japanese-owned. Their crews are rescued.

The strait is a vital corridor connecting the petroleum-rich states of the Middle East with markets around the world.

Washington, London and Riyadh accuse Tehran of being behind the attacks, which it denies.

 

 Rocket attacks on Iraq 

 

On June 18, rockets strike an oil field in Iraq's Basra region, near a camp used by a company of US industrial conglomerate General Electric.

It is the latest in a nearly week-long barrage of anonymous shelling attacks on American interests across Iraq.

The incidents are not claimed but largely originate from areas where Shiite-dominated armed groups loyal to Tehran have free rein.

 

 US drone downed 

 

On June 20, Iran's revolutionary guard say they shot down a US drone which violated Iranian airspace.

The Pentagon says the drone was in international airspace and denounces an “unprovoked attack”.

Trump says he approved a retaliatory strike the next day but cancelled it at the last minute.

On June 24, he announces "hard-hitting" financial sanctions on Iran's Supreme Leader Ayatollah Ali Khamenei and senior Iranian military leaders.

 Iran tanker seized 

 

On July 4, authorities in Gibraltar, a British overseas territory in the Mediterranean, detain a Iranian tanker on suspicion that it is carrying crude to Syria in violation of EU sanctions.

Iran demands its release, accusing Britain of acting at the bidding of the United States.

On July 11, Britain says three Iranian military vessels had tried the previous day to "impede the passage" of a UK oil tanker in Gulf waters but were warned off by a British warship.

The tanker is owned by British energy giant BP.

Iran's revolutionary guard deny there was any confrontation but warn that United States and Britain will "strongly regret" the seizure of the tanker off Gibraltar.

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