Russian forces appear to have used North Korean cluster munitions in strikes targeting Ukraine’s Kherson region this week, with several bombs still lying unexploded on the street and posing a lingering threat to civilians.

“The enemy is using cluster munitions to shell Kherson,” the National Police of Kherson Region warned on social media on Monday, without specifying the weapons’ origins.

The police said they observed the use of cluster munitions by Russian forces in Kherson’s coastal areas and advised residents against picking up or moving unexploded submunitions that still “pose a significant danger.”

“These munitions resemble little bells and are