Wiktionary
bursts into tears
vb. (en-third-person singularburst into tears)
Usage examples of "bursts into tears".
Morrie, when he hears, says the world's not a safe place and good soldiers are needed and Sophie bursts into tears, she can only remember one kind of soldier.
When he faces forward again and tries to start the car, the older girl bursts into tears as if she's a baby.