Those tensions are also now being felt in Canada with a group representing Islamic Americans reporting that dozens of Iranians and Iranian-Americans were detained at length and questioned at the Peace Arch border crossing linking British Columbia to Washington State.
Also Sunday, Iran said it is no longer limiting the number of centrifuges used to enrich uranium - a virtual abandonment of the 2015 nuclear deal that had constrained its nuclear activity in return for sanctions relief.
US President Donald Trump threatened sanctions against Iraq on Sunday after Baghdad demanded that American and foreign troops leave, amid a growing backlash over the US killing of a top Iranian military commander, heightening fears of wider conflict.
She said: "The families of US soldiers in the Middle East will spend their days waiting for death of their children".
The Iraqi parliament backed a recommendation on Sunday by the prime minister for all foreign troops to be ordered out of Iraq after Soleimani's death united rival Iraqi Shi'ite leaders, even those opposed to Iranian influence. The scale of the crowds, shown on television clogging major streets, was the biggest since the 1989 funeral for the founder of the Islamic Republic, Ayatollah Ruhollah Khomeini, leader of the revolution that set Iran on its political collision course with Washington.
"Iran has to be very anxious that in the state of its economy, the significant popular unrest and demonstrations against the regime that this is a real threat to the regime in a way that we have not seen prior to this", he said. The contract surged 3.6% on Friday. Earlier in the session, it had rallied as much as 1.8% to touch $1,579.72, its highest since April 10, 2013.
The deepening crisis continued to spill over into other markets.
In terms of its gross domestic product (GDP, the total value of goods produced and services) the United States spent roughly 3.4% on defence in 2019, according to Nato estimates, while the average in European Nato countries and Canada was 1.55%.
Safe-haven assets which are popular in times of turmoil were also on the rise, with gold at highs not seen since mid-2013.
Tsitsipas eases past Zverev in battle of young guns
After their shock defeat to Norway on Day 1, Team United States were beaten 2-1 again, this time by Russian Federation . He lost Friday in the Australian opening game against Alex de Minaur and threw away a one-set lead .
U.S. President Donald Trump tweeted the United States will "quickly & fully" strike back if Iran retaliates.
Brent crude prices jumped above $70 for the first time since September, when attacks on two Saudi oil facilities disrupted output by the world's top producer. She said a "disproportionate" response would break global law, which says any action taken in self-defense must be proportionate to the threat.
The Iranian leadership has signaled it will probably target USA military installations and bases in the Middle East and mobilize its network of militias across the region. Four million barrels of options contracts that would profit from a jump in Brent crude to $95 a barrel traded for both March and September.
Still, oil's 23% rise past year could already have taken it to levels that may not leave much room for further increase, according to analysts.
"The oil market always assumes the worst, so a lot of the general risk is already priced in", said Jaafar Altaie, managing director of Abu Dhabi-based consultant Manaar Group. "We'll make you pay for the blood you spilled", said Mehdi Ghorbani.
The greatest risk to supply would be an attack on Iraq's southern fields, he said.
We are 80 million Iranians, if each one of us puts aside one American dollar, we will have 80 million American dollars, and we will reward anyone who brings us [Trump]'s head with that amount.
-With assistance from Alex Longley and Dan Murtaugh.