The US military says it's carried out strikes in southern Iran, targeting boats trying to lay mines and missile launch sites.
The US Central Command says the attacks were defensive in nature, designed to protect its troops from threats posed by Iranian forces.
Iran's top negotiator and its foreign minister are reportedly in Doha for talks with Qatar's prime minister on a potential deal with Washington to end the three-month-old war.
But both the U-S and Iran have played down hopes for an imminent breakthrough.
Russia says it will launch 'systematic strikes' on the Ukrainian capital and is urging foreigners to leave quickly.
It warns that it will strike targets in Kyiv linked to the military and decision-making centres.
But the Ukrainian foreign minister insists its allies will not give in to Russian blackmail.
Russia launched one of its biggest airstrikes of the war on Kyiv over the weekend, striking non-military targets and killing at least four people.
the Northern Territory Health Minister says diphtheria cases are falling amid Australia's worst outbreak on record.
There are 163 confirmed cases of the disease in the NT at the moment, and at least 242 have been recorded nationwide so far this year.
Minister Steve Edgington says efforts to control the outbreak are beginning to see results.
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