Buxted Football Club posted CCTV footage on its Twitter page of a man and a woman breaking and crushing a defibrillator, with the club calling for the public to report the perpetrators.
The video has been reposted thousands of times and received a massive response from commenters online.
Sussex Police said on Monday they were investigating the report of a defibrillator being damaged and stolen at Buxted FC on 13 June and confirmed the arrest of a 17-year-old on suspicion of causing criminal damage.
“We're aware of a video circulating online and would ask the public not to post speculative comments”, the police said.
The incident has triggered widespread condemnation, having taken place only hours after Danish football player Christian Eriksen collapsed during a Euro 2020 game on Saturday. Eriksen suffered a cardiac arrest on the pitch, requiring urgent medical assistance on the spot.
The footballer’s condition is stable, as reported by the Danish Football Association on Sunday, but he will continue to be hospitalised for further examination.
Buxted FC thanked its fans and members of the public for supporting the club following the vandalism incident.
"We can’t thank you enough for the retweets, comments and likes. The reaction has been incredible. Fingers crossed it won’t be long before the two people in the video are caught and we can get a replacement defibrillator fitted", the club said on Monday.