South Elgin police issued a community alert Friday regarding what authorities called two "suspicious circumstances" that occurred this week.
On Thursday, a resident reported that a male and female couple came to his house and said they were FBI agents investigating child pornography. They flashed "some type of identification" and said the resident's IP address indicated he had viewed pornography, according to a news release.
The resident allowed the couple to come into the house, after which they attached a thumb drive to his computer. Police said it's unknown what the suspects may have retrieved off the computer.
South Elgin police called FBI officials, who advised that no agents were in the area Thursday.
The suspects are described as a white male in his 40s with salt and pepper hair, last seen wearing a gray vest and blue jeans, and a white female in her 30s with dark hair, last seen wearing dark colored business attire.
They were driving a dark blue Chevrolet Malibu with no license plates, according to police.
In the other suspicious incident, police said a man called a resident Tuesday asking for donations for retired South Elgin police officers. He requested the resident leave a check taped to her door if she wasn't going to be home. The woman didn't comply with the request, and she contacted police.
The news release stated the South Elgin Police Department does not solicit funds for active or retired police officers.
Police advised residents to contact 911 if they questioned any individuals posing as officers. They said a patrol officer would be dispatched to verify their identity.