WAKE COUNTY (WTVD) --Authorities across Wake County are investigating a string of early morning convenience store robberies.
The first incident was reported around 2 a.m. Tuesday at the Han-Dee Hugo's at 103 SW Maynard Road in Cary.
Authorities tell ABC11 that a man wearing a ski mask, a dark-colored jacket and blue jeans walked into the store and demanded money from the clerk.
The suspect did not display a weapon, but the clerk complied, police said. The man then left with an undisclosed amount of cash.
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About an hour later, a second robbery was reported at the Circle K at 4019 Davis Drive in Morrisville.
The suspect reportedly did not show a weapon and asked for money.
Then around 4 a.m., Raleigh police were called about a robbery at the Circle K in the 8500 block of Harps Mill Road.
In that incident, the suspect also reportedly did not show a weapon, but had his hand in his coat pocket.
It is unclear if the three incidents are related.
ABC11 will update this story as more information becomes available.