HOUSTON (KTRK) -- At least nine people were injured at two different locations Sunday morning across the area.In southeast Harris County, four people were shot overnight. One of those victims is now in critical condition.It happened outside the home home on Gullwood near Olivewood during a party. According to investigators, party-goers were in front of the house when a vehicle drove by. Someone inside that vehicle began shooting. The motive, at this point, isn't clear.Of the four people hit, one person is in critical condition.As for suspects, investigators say they're looking for three or four people seen in a silver sedan. Witnesses say it's possibly a Jetta or Acura, but that's as detailed as the description gets.Neighbors say this isn't the first time shots have been fired in this neighborhood. Someone who lives at the end of the block says just last weekend, there was a shots-fired call and last week, there was another one on the same street.At an after hours club, more gunshots occurred across the city. Investigators say a fight started inside the Fiesta Club on the Gulf Freeway."Basically people started fighting and then they spewed into the parking lot," an eyewitness said.One man shot at the bouncer, striking him in the leg and injuring four women. The bouncer fired back at the suspect, killing him. A second suspect has not been arrested.