Police are warning iPhone users of a dangerous prank that involves the Apple smartphone "assistant" Siri.
According to officials, social media posts have been encouraging users to say the number 108 to Siri.
Authorities are advising customers to avoid doing this at all costs.
The posts claim requesting the number will direct Siri to laugh or tell a joke or story.
However, having Siri dial 108 will automatically connect a caller to the nearest 911 dispatch center.
The unnecessary calls tie up lines and prevent real emergency calls from being answered, putting lives in danger.
Placing prank calls to 911 can be considered a crime:
It's a prank call when someone calls 9-1-1 for a joke, or calls 9-1-1 and hangs up. Prank calls not only waste time and money, but can also be dangerous. If 9-1-1 lines or call takers are busy with prank calls, someone with a real emergency may not be able to get the help they need. In most places, it's against the law to make prank 9-1-1 calls.