Robbers threatened workers in two Dartmouth businesses overnight Sunday, Halifax Regional Police say.
The first incident occurred at 7 p.m. when a male suspect walked into the Subway at 41 Portland St. and ordered the store clerk hand over money, while keeping one hand in his pocket, police said.
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"Staff felt the suspect could be armed," a report released Monday said. He then grabbed some cash and ran.
The second incident happened at 2:40 a.m. Monday, when a man entered the Ultramar gas station at 219 Pleasant St. He told the attendant he had a knife and also demanded cash, but ended up taking off empty-handed, police said.
In the first case, police said officers arrested four males about an hour later, releasing two without charges and keeping the other two in custody. In the second case, police said they're still looking for a black man who is around 25 years old, has short black hair and is about 5-6 with a skinny build.