Most unvaccinated Americans unlikely to get shots, poll finds, as Delta spreads – as it happened

• About 16% say they will get the vaccine, according to AP poll
• Kay Ivey says it's time to start blaming the unvaccinated' for rise in cases
• Covid cases likely to accelerate through summer, new forecasts say
• Philadelphia health officials recommend masks in public indoor settings

12.58am BST

That's all from the Guardian US politics liveblog, here's what happened today:

12.39am BST

Cameras, computer modeling, drones: the higher-tech ways to fight fires

As dozens of wildfires continue to burn in across the US, the Associated Press has a new report out on the new technology that firefighters are using to fight increasingly ferocious blazes. The AP writes:

As drought- and wind-driven wildfires have become more dangerous across the American West in recent years, firefighters have tried to become smarter in how they prepare.

That includes using new fire behavior computer modeling that can help assess risks before fires start, then project their path and growth.

Related: Wildfire watchmen: the mountain tower where lookouts spot blazes