Police are asking for help finding a man wanted in a string of robberies of older people in East New York.

Investigators say the man seen in this video has robbed three people since the beginning of November.

In the latest incident on November 29, the robber allegedly approached an 83-year-old man near Snediker and Livonia avenues, pushed the victim to the ground and took an unknown amount of cash.

In two previous robberies, police say the robber took more than $60 in cash.

He's described as around 21 years old and about 6 feet tall.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.