The Humberston residents were attacked by high-tech thieves who only needed three seconds to break into their homes, get valuables and car keys, and even an award-winning Land Rover.
Four such burglaries were reported at Renaissance Park on Humberston Avenue.
In two of them, the families slept up when the thieves broke in seconds.
A homeowner said the thieves needed only three seconds to open the lock of a door.
Inside, they stole a ceramic pot with key patches for cars parked outside, including a black special purpose Land Rover Discovery with a '59 plate.
Neighbors in Humberston have shared CCTV images of a silver Subaru and a person acting suspiciously at the scene.
One owner, whose house was broken into with her family while sleeping, said, "We are all horrified that someone could come into the house when we sleep, and the discovery was the pride and joy of my husband We spent about a week watching them using a special tool to open the door. "
She said that in addition to car keys also iPads and laptops were stolen.
She added, "We had our cars confiscated because they took the keys to all our cars, and although they took the Discovery, we were told they could come back for the others.
It was a shock to wake up at 7am on Friday, but it was frustrating that the car was stolen at 6 pm Someone could have gone south. " France at this time. It is taxed and insured, so I doubt it will be found after all this time. "
Another resident narrated how she and her sons slept when the burglars invaded after they had forced a door open.
She wrote on social media: "The worst thing for us was not the possessions, it's the idea that people were in our house while we were sleeping, they came upstairs and even went into my little boy's room."
One neighbor said, "It has scared a lot of people and we are very worried, we are all part of a Neighborhood Watch network, and when I heard about it, I freaked out and told my husband we needed better locks, the locks they were finished in three seconds.
"Everyone's been watching CCTV and giving tips on how to improve security, and part of the problem is that some roads have not been taken over and we do not know if the city council is responsible for street lighting.
Humberside police confirmed that they had received reports of a car theft in Humberston, which occurred Thursday from 18:30 to 08:00 the following morning from the address on Humberston Avenue.
Detective Chief Inspector Doug Blackwood of Grimsby CID said, "I see more examples of car theft related to burglaries in and around the North East Lincolnshire area, and we currently have very active investigative procedures to find those responsible.
"Right now we have a number of people who are looking closely."
He added, "There are many things that car owners can do themselves to protect their vehicles, especially those that have quality cars that may be more desirable to potential thieves.
"Never leave your car keys through a window or door when not in use, do not leave them in locks, on a counter or shelf, and never near a mailbox or cat flap.
"Criminals can use tools to steal the keys without forcing access to property.
"If you have a garage, keep your vehicle safely in it.
"If you need to park your vehicle in the driveway or on the street, you should consider additional safety features. Make sure that the area is well lit, that the vehicle is locked and that nothing of value remains in it, such as a car. Tools, laptops, money, dash cams, navigation devices.
"If you have gates to secure your driveway, make sure they are closed and locked if necessary.
He recommended getting a professionally equipped car alarm or immobilizer.
The manager said residents should consider installing a house alarm, a motion sensor outside the lights and, if possible, video surveillance to cover the property including the rear garden.
DCI Blackwood said, "Even if you have two vehicles and one of lesser value than the other, you should think about blocking your more expensive car.
"We find that these crimes are often committed at night on the backs of land. There are a number of very simple, sensible security measures that car owners can take. You just have to do it. "
An attempted burglary on Queen Elizabeth Road was also reported. Other members of the Neighborhood Watch group reported two more burglary attempts in homes on Chichester Road in Cleethorpes.
He urged anyone who saw anything suspicious, especially people who were unrecognized and who loitered at night, to call the Humberside Police at 101 or 999 in an emergency.
Information may also be forwarded to the independent charity Crimestoppers on 0800 555 111 if callers wish to remain anonymous.
For more top stories and breaking news, visit Grimsby Live
Follow or contact Grimsby Live
Contact us : E-mail to the reporter who wrote this story.
Follow Grimsby Live on Facebook – Like our Facebook page, to get the latest news in your feed and to participate in the lively discussions in the comments. Click here to give it or send us a message with a comment or a story
Follow us on Twitter – Latest news and the latest news can be found here Follow Grimsby Live on Twitter ,
Follow us on Instagram – On the Instagram page of Grimsby Live we want to show great pictures from our region – and if you mark us in your posts, we can publish your picture on our site! Click here to follow Grimsby Live on Instagram.