Dramatic footage is backdrop to news that it will take six months to set up armed response unit

The new armed response unit for Dublin, announced as part of a government package to fight gangland feuding, is not expected to be up and running for at least five to six months.

The Regional Support Unit was announced by Justice Minister Frances Fitzgerald on Tuesday following a meeting with Garda chiefs after a second gang murder in four days.

The minister said the unit — a heavily armed 24/7 roaming patrol squad — will have a staffing complement of 55.