Taoiseach Bertie Ahern has expressed his condolences to the Polish prime minister on the deaths of two Polish nationals in Ireland.
Mr Ahern, who is in Poland on an official visit, told Prime Minister Donald Tusk that "people in Ireland were shocked and saddened to hear of the violent attack on two young Polish men last weekend".
He said: "I understand that the two friends were in Ireland for less than a year, and our thoughts are with the families and friends of Marius Szwajkos and Pawel Kalite."
Mr Ahern is in Warsaw to hold talks with Prime Minister Tusk on the Lisbon Treaty and the EU-led peacekeeping mission in Chad.
The Taoiseach is also expected to pay a courtesy visit to President Lech Kaczynski and attend an Irish embassy reception for representatives of the local Irish-Polish business community. Mr Ahern is on the final leg of a three-country EU visit which also included Slovenia and Austria.
In the Dáil today, Fine Gael Enda Kenny expressed his sympathy to the families and friends of the two victims. Labour Party Eamon Gilmore said Irish society "needs a very serious discussion with itself" about the violence on the streets.
Labour Party TD for Dublin South Central Mary Upton called for more community gardaí on the streets and the implementation of the Children's Act to help tackle anti-social behaviour and crime.
Sinn Féin's justice spokesman and Dublin South Central TD, Aengus Ó Snodaigh, also called on the Government to address the large number of off-licences as well as shops and supermarkets allowed to sell alcohol.