The European Union strongly condemned on Tuesday the terrorist attacks on the Chechen parliament in Grozny.

Three Islamist militants launched a terrorist attack in the parliament of the Russian republic of Chechnya on Tuesday, killing two guards and an official. All the attackers were killed by government security forces.

"I was sad and concerned when I learned the news about the terrorist attacks against the Chechen parliament, in which three people lost their lives," European Parliament President Jerzy Buzek said in a condolences message to the victims'families, adding that violence and murder can never in any situation be accepted "as a form of protest."

"It is of utmost importance for the Russian authorities to show their full commitment to enhancing the rule of law and to ensure that it is properly and equally applied," Buzek concluded.

"No circumstances can justify the use of terrorist violence and suicide attacks," High Representative for Foreign Affairs and Security Policy, Catherine Ashton, also said on Tuesday.

"We confirm our readiness to strengthen cooperation with the Russian Federation in the fight against international terrorism," Ashton declared.