Clayton, MO (KTRS)  Thieves continue to target St. Louis area jewelry stores.

The latest incident happened when The Diamond Shop in Clayton was held up at around 10 a.m. Thursday. This is the fourth jewelry storing to be hit in the past two weeks.

Earlier this week, a downtown St. Louis jewelry store was burglarized. Two weeks ago in Creve Coeur, a jewelry store was robbed and another was burglarized.

Police haven’t determined if these incidents are connected.