Two Chicago boys, ages 5 and 7, in critical condition after July 4th shootings, police say

(CBS/AP) CHICAGO - Police say a 5-year-old boy and 7-year-old boy are in critical condition after being shot during separate shooting incidents in Chicago.

The unidentified older boy was shot twice in the head around 7:30 p.m. Thursday while he was at a 4th of July family picnic with 60-70 other people at a park, according to CBS Chicago.

The station reports, two suspects approached the family and one of them opened fire then fled in a vehicle.

The grandmother of the child told the station that the family noticed the car driving by numerous times.

The second boy, 5-year-old Jaden Donald, was shot around 12:40 a.m. on Friday at a park. Police spokesman Hector Alfaro says Jaden was shot in the abdomen and thigh while watching the fireworks with his family and friends, according to CBS Chicago.

Jaden's mother, Jasmine Dillon Donald, reportedly said she thought she heard more fireworks and then realized a man across the street shooting into the park.

"Everybody ran. The other kids got down. My son tried to run to me. I was running towards him, but as soon as I got to him is when he fell," Donald said.

The mother drove her son to the hospital, but the child was later transferred to a different medical center where doctors removed his spleen, pancreas, and one of his kidneys, the station reports.

Authorities don't believe the boys were the intended targets in either shooting.

According to CBS Chicago, no arrests have been made in connection to the shootings and police are urging people to come forward with any information.

The Chicago Sun-Times reports six men have been killed and at least 28 other people have been wounded in shootings throughout the city since the start of the long July Fourth weekend on Wednesday night.