Two women, aged 27 and 28, have been arrested on suspicion of an offence under the Dangerous Dogs Act.
It follows the death of a 79-year-old man in the Clubmoor district of Liverpool after a dog attack.
More top news
MI5 face mounting pressure over claims the IS executioner 'Jihadi John', named yesterday as a London graduate, was known to them
Labour leader Ed Miliband is due to set out his party's plans on how it would cut tuition fees.
New drug driving laws are to come into effect next week, including laws on some prescribed medications.