According to reports, gunshots were fired overnight in Guinea-Bissau’s capital Bissau and continued into Friday morning.
The shooting’s circumstances are currently unknown.
According to reports, gunshots were heard shortly after midnight in the Antula neighborhood, on the outskirts of the capital, where an army general lives.
On Friday morning, residents were commuting to work and school in military vehicles.
Residents say gunshots could still be heard but were less frequent than during the night.
There have been at least 10 coups or attempted coups in Guinea Bissau since independence from Portugal in 1974.
Only one democratically elected president has completed a full term in the West African nation south of Senegal.
At least six people were killed during a failed attempt to overthrow President Umaro Sissoco Embalo in February last year.
West Africa has been hit by a string of military takeovers over the past three years, including two in Mali, one in Guinea, two in Burkina Faso and one in Gabon.
Sierra Leone’s government pushed back a military attempt to overthrow it over the weekend.
More than 20 people were killed as gunmen in the capital Freetown attacked military barracks, a prison and other locations on Sunday, freeing about 2,200 inmates.