How do I delete pictures from a text message thread?

[Android Central Question]

I have a delay when u open a certain person's text message thread and it also delays when I send a message. I figured it would be due to the cause of out thread being a year long and having over 600 photos sent through text. How do I delete those pictures from the thread on my s9 plus?

 

[B. Diddy]

Welcome to Android Central! Long press the photo and tap the delete button.