Massive firing in the US states of Pennsylvania and Tennessee has killed at least six people and injured more than 25.
According to British news agency Reuters, the attackers opened fire on Saturday in a busy South Street, Barz and restaurant area of Philadelphia.
Authorities said two men and a woman were killed in the shooting.
In the video, people can be seen running away in a world of panic after shooting on a crowded road.
Similarly, when people were enjoying Saturday night in the city of Tennessee, the shooting took place after midnight.
No suspect could be detained in both shootings.
Michigan's local news website M Live.com reported that three people were killed in another shooting incident on Sunday morning in another shooting incident.
Three people were killed and 14 were injured in a shootout in Chatchuga, officials said.
According to the research group Gun Violence Archives, at least 240 firing incidents have been reported in the United States so far this year.
Philadelphia police reported three incidents of shootings in South Street on Saturday night.
About the second incident, police believe two men first shot and then shot. One of them was shot dead.
A police officer saw a man firing in a crowd and opened fire on him.
Philadelphia police commissioner Daniel Outla told a news conference: "Police believe the shooter was injured, but he still fled the crowd.
"We are using the resources available to reach the bottom of the firing incidents not only last night but also in the city," said Daniel Outla.
The victims of the shootings were 22, 27 and 34 years old, while the injured were between 17 and 69 years old.
Later last month, a young man was shot dead by a young man in a Texas state in the United States, killing 20 people, including 19 children.
10 black people were shot dead in Buffalo's supermarket, while four people were shot dead at a medical center in Tulsa, about 160 km northeast of Oklahoma City on Wednesday.
Following recent incidents of shootings, US President Joe Biden appealed to lawmakers to pass strict rules to prevent weapons.
In his appeal, President Joe Biden also called for a ban on weapons used in the attack.
