A man suffering from a heart attack was saved when his neighbors sprang into action and administered CPR after he rang their doorbell in York Haven, Pennsylvania, viral video shows.

Footage captured from Christopher Mowry’s home surveillance camera shows their neighbor walking up to their porch, showing obvious signs of distress, ringing the doorbell, and then lying down. Another neighbor rushes up to assist. Mowry, a firefighter, and his wife, a practicing nurse, emerge from their house and call 911 before beginning to administer CPR as the man goes into cardiac arrest.

After the EMTs arrived at the scene, Mowry’s wife rode along to assist as the patient was transported to the hospital.

Additional photos and video show the neighbor return to their home a few days later to express his gratitude for their help.

In Facebook post, Mowry stressed the importance of knowing CPR and defibrillation and said he and his wife would be organizing a CPR class for the neighborhood. Credit: Christopher Mowry via Storyful