Police are investigating two separate robberies that occurred in Waianae Monday.

Police said two masked male suspects used an unspecified dangerous instrument and robbed a 45-year-old man of his property at approximately 11 a.m. The culprits then fled in a waiting vehicle described as a white Honda Accord.

Approximately four hours later in the Waianae area, police said a male suspect used a dangerous instrument and demanded money and property from a 23-year-old man.

The suspect fled in a waiting vehicle described as a black GMC.

There are no arrests in both cases.

It’s unclear whether the two robberies are related at this time.