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United Airlines is placing new restrictions on animals it will allow on flights after a series of issues with transporting pets this year.

The airline will only transport cats and dogs, but some breeds with snub noses or strong jaws, such as boxers or bulldogs and Persian cats, will not be allowed. No other animals will be placed on flights, the airline said.

>>See the full policy here<<

Pet transport had been suspended when a dog died after a crew member told a passenger to place their dog in the overhead bin.

Then the carrier mistakenly shipped a Kansas-bound dog to Japan, and in a separate incident, it had to divert another flight to Akron, Ohio, after the airline realized a pet had been loaded onto the flight in error.

The airline will resume pet travel in July.

Following are the dog and cat breeds that United will no longer transport:

Dog breeds Affenpinscher American Bully American Pit Bull Terrier/Pit Bull American Staffordshire Terrier/"Amstaff" Belgian Malinois Boston Terrier Boxer Brussels Griffon Bulldog - American Bulldog - English Bulldog - French Bulldog - Old English Bulldogges - Shorty Bulldogs - Spanish Alano/Spanish Bulldog/Alano Espanol Cavalier King Charles Spaniel Chow Chow English Toy Spaniel/Prince Charles Spaniel Japanese Chin/Japanese Spaniel Lhasa Apso Mastiff - American Mastiff - Boerboel/South African Mastiff - Bullmastiff - Ca de Bou/Mallorquin Mastiff - Cane Corso/Italian Mastiff - Dogo Argentino/Argentinian Mastiff - Dogue de Bordeaux/French Mastiff - English Mastiff - Fila Brasileiro/Brazilian Mastiff/Cao de Fila - Indian Mastiff/Alangu - Kangal/Turkish Kangal - Neapolitan Mastiff/Mastino Napoletano - Pakastani Mastiff/Bully Kutta - Pyrenean Mastiff - Presa Canario/Perro de Presa Canario/Dogo Canario/Canary Mastiff - Spanish Mastiff / Mastin Espanol - Tibetan Mastiff - Tosa/Tosa Ken/Tosa Inu/Japanese Mastiff/Japanese Tosa Pekingese Pug - Dutch Pug - Japanese Pug Shar-Pei/Chinese Shar-Pei Shih-Tzu Staffordshire Bull Terrier/"Staffys" Tibetan SpanielCat Breeds Burmese Exotic Shorthair Himalayan PersianCopyright 2018 WNEM (Meredith Corporation) / CBS News. All rights reserved.