Post Malone abruptly postponed his Boston concert hours before it started, citing pain that appeared to be lingering from his fall a week earlier.

A few hours before he was set to perform at the TD Garden on Saturday night, the singer announced the news on social media, explaining that he had experienced a severe side discomfort that necessitated another trip to the hospital.

“On tour, I usually wake up around 4 o’clock PM, and today I woke up to a cracking sounds on the right side of my body. I felt so good last night, but today it felt so different than has it before,” Post wrote.

Also read: Post Malone falls on stage, returns to finish the performance

The concert has been postponed because he continues by saying that every time he moves or breathes, he experiences a “stabbing pain.” He then apologises to his Beantown followers and promises that their tickets will be valid for another day in the future. Post won’t perform on Saturday night.

Also read: Who is Post Malone?

There was a lot of uncertainty and annoyance going on inside the stadium, as multiple reporters reported from the ground that large numbers of people were departing after learning through security that Post Malone had postponed the event while they waited to enter.

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Since falling through a hole on stage last weekend and breaking a few of his ribs, he has continued to perform. PM later assured followers that he would be alright and would soon resume his tour, but it appears that he is not yet fully recovered.

It is uncertain when Post will perform in the coming days. He has two concerts scheduled for next week and several for October.