“I’m looking after myself and getting rest now,” Ashton Irwin says.

“So the decision was to end the show there and then.”

Irwin said he’s recuperating and expressed gratitude for the outpouring of support he’s received.

5 Seconds of Summer

5 Seconds of Summer.Valerie MACON/getty images

“Unfortunately this time my body gave out due to heat exhaustion.

I was in tears in the ambulance, because I feel I’ve let many people down.

I’m looking after myself and getting rest now.

This is the price a dehydrated drummer pays when he takes on Texas heat.

All will be made right, ticketing wise, and rescheduling wise.

Thanks for the love.

I’ll be back onstage ASAP!”

5SOS shared a further update on their Instagram story.

“Upon experiencing physical symptoms, Ashton was taken to a local hospital for tests and medical review.

As a result, it was advised Ashton had experienced extreme heat exhaustion.

Thankfully and most importantly, he is feeling ok and recovering very well.

We apologize to all the fans in attendance for the show being cut short.”

Otherwise, 5 Seconds of Summer aren’t showing any sign of slowing down.

They’re also set to tour Australia in the fall.