Gun found in dead officer inquiry

Youths threw petrol bombs at police in protest at the arrest of Colin Duffy

A gun and ammunition have been found during searches in Northern Ireland as part of the investigation into the murder of policeman Stephen Carroll.

The weaponry was discovered in Lurgan, where a number of petrol bombs were thrown at police on Saturday evening.

Earlier, leading republican Colin Duffy was arrested in the town and is still being questioned about last week's murder of two soldiers in Antrim.

Constable Carroll, 48, was shot while on duty in Craigavon on Monday.

Mr Duffy is one of three men being questioned about the murder of two soldiers at Massereene Army base last Saturday night.

The 41-year-old was arrested during a police raid in Lurgan on Saturday.

Detectives investigating the soldiers' murders also carried out an operation in Bellaghy in County Londonderry.

Ex-IRA member

Sappers Mark Quinsey and Patrick Azimkar were shot outside the base in Antrim. About 500 people attended a vigil at the scene on Saturday.

The gathering, which was organised by Antrim Borough Council, was addressed by the mayor of the town and local clergy. The mayors of Wexford, Cork, Westmeath, and Wicklow also attended.

The dissident republican group, the Real IRA, said it carried out the attack.

The other men arrested over the murders are aged 32 and 21.

Mr Duffy is a former IRA member who has been critical of Sinn Fein's support for the police service.

Officers searching his house came under attack from stonethrowers but there are no reports of serious injuries.

Sappers Quinsey, 23, from Birmingham and Azimkar, 21, from Wood Green, London, were attacked after coming out of the base to collect pizzas they had ordered.

Two gunmen in a car parked nearby opened fire with semi-automatic rifles.

Four other people, including two pizza delivery men, were injured.

The soldiers, from 25 Field Squadron of 38 Engineer Regiment, were murdered just hours before they were to have been deployed in Afghanistan.