A handgun and ammunition have been seized in Dublin as part of an ongoing investigation into serious criminal activity.

The 9mm pistol, which appears to have been made in Russia, was found during a search in the Botanic Avenue avenue of Drumcondra yesterday evening.

No arrests have yet been made and investigations are ongoing.

It comes after up to €2 million in drugs were discovered during separate seizures in Leinster over the past week.

Ten people were arrested during the raids, which targeted four separate criminal groups.

Detective Superintendent Tony Howard told a press conference that the haul included multiple kilos of cannabis, heroin, cocaine and ecstasy tablets and mixing agent.

A submachine gun, Audi car, jewellery and a total of around €80,000 in cash were also discovered during the searches in Dublin, Louth and Meath.