MOSCOW (AP) — Alarmed by the number of Russians who have been killed while taking photos of themselves with smartphones, Russian police have started a new campaign called "Safe Selfies."

The instructions issued Tuesday warn against standing on railroad tracks, climbing onto roofs or posing with a gun or a tiger.

These are some of the ways that police say at least 10 Russians have been killed and 100 injured while taking selfies this year.

The most recent death occurred last week when a woman fell from a bridge in Moscow.

Police spokeswoman Yelena Alexeyeva said "along with the advantages of the modern world there are also new threats. We want to remind citizens that the pursuit of 'likes' in social media can put them on the road to death."