Cleveland Police letterbox key burglary warning
Fishing rods and coat hangers have been used to steal car keys through letterboxes, police have warned.
Thieves struck in Abdale Avenue and Windsor Crescent in Middlesbrough and North Albert Road in Stockton.
Nothing was taken in the first and third cases, but a Volkswagen Golf was taken in the second.
Det Ch Insp Chris Downes, from Cleveland Police, said keys should be kept "out of sight and out of reach".
Four men, aged 38, 31, 27 and 17 have been arrested on suspicion of burglary and released on bail.
The 17-year-old was also arrested on suspicion of driving offences.