A seven-year-old boy and his mother were targets of a "shocking" shooting when they answered the door at their home in Salford, police have said.
The woman, 29, and her son were taken to hospital with leg wounds after the gunman struck in Gillingham Road, Eccles, Salford, on Monday night.
The victims' injuries are not thought to be life-threatening. The force said it was not clear if the incident was linked to other shootings in Greater Manchester at the weekend.
"This is a truly shocking set of circumstances in which a young boy and a woman have been injured after they were shot at by a gunman at their home," Det Supt Joanne Rawlinson said.
"This incident has only just happened, but there is a huge police effort under way to investigate this attack and find those responsible."
Ms Rawlinson said police do not know the motive behind the attack and appealed for anyone with information to come forward. Neighbour Sue Barry said she "heard two loud bangs and thought they were fireworks".
"Next minute the police showed up and they've been there all night," she said.
