CHAMPAIGN — Police are investigating four shootings that happened in Champaign on Sunday, including three within two blocks of each other, and one which injured one man.

"It clearly appears that within the last week and a half to two weeks we've had more acts of violence than we've had in a two-week period in quite some time," said Champaign police Sgt. Dave Griffet. Several of those incidents have resulted in arrests, including an armed robbery Sunday and a home invasion last week, he said.

The reports of shootings on Sunday included:

— At 4:30 a.m., a resident of the 1400 block of Holly Hill Drive in Garden Hills reported several rounds fired into the home. One round went through the wall of a child's bedroom. The child, 10, was sleeping in another room and was not injured.

— At 2:09 p.m., a 72-year-old woman reported several shots were fired into her house in the 200 block of Bellefontaine Street. No injuries were reported.

— At 7:53 p.m., officers were sent to the 1500 block of Holly Hill, where they found a 23-year-old man had been shot while watching television in his living room with friends. His injuries were not believed to be life-threatening. Eight other people were in the home; none of them was injured.

— At 11:12 p.m., several residents reported hearing gunshots in the 1500 block of Holly Hill, but could not specify where. Two residents discovered, though, that several rounds had gone into their homes.

"There's a good possibility that some of the shootings on Holly Hill are related," Griffet said, and could involve groups that have an ongoing conflict with each other.

"It's unfortunate that some people think that's the way they have to resolve something," Griffet said.

He said police are talking to victims and others who may know who is responsible.

"We oftentimes look at who was the intended target — was it someone who stays at that address, or (someone) who came across somebody they may have had a problem with," he said. "Usually people will talk about what has taken place."

Police are asking anyone with information to contact them at 351-4545. Those who wish to remain anonymous can call Champaign County Crimestoppers at 373-TIPS (8477), or leave a tip online anonymously at http://www.373tips.com or via text by sending CCTIP and the information to 274637 (CRIMES).