Baby Bella’s cries were a sign of relief.

The 29-day-old had stopped breathing, leaving frantic loved ones panicked.

That was until Savannah police Officer William Eng arrived.

Eng wasn’t dispatched, but he was closer to the scene and headed to Bella’s home, the Savannah-Chatham Metropolitan Police Department wrote in a Facebook post.

In bodycam footage released by the department, Eng hurried up three flights of stairs, took Bella from her crying mother and began compressions.

“After about a minute, he heard Bella cry,” read the post.

Bella was taken to the hospital, where doctors credited Eng for saving her life.

“It feels great, but it’s part of my job," Eng told ABC News. “It’s why I wanted to become a police officer in the first place — to make a difference and save lives.”