The delegations of the parliament and government, led by Seks and Sanader, also laid wreaths at the Altar of Homeland on Mount Medvednica overlooking Zagreb and at the grave of the first Croatian President Franjo Tudjman as well as at the joint grave of unidentified victims from the Homeland Defence War in Mirogoj.
Wreath-laying ceremonies were in the entire country on Monday.
A delegation of the city of Vukovar placed wreaths at the local Memorial Cemetery, in which so far 737 victims from the Homeland Defence War have been buried, including 429 Croatian soldiers.
The city delegation led by Mayor Nikola Stengl also laid a wreath at the former farm at Ovcara, where about 200 Croatian wounded soldiers and civilians were executed by Serb paramilitaries and the then Yugoslav People's Army (JNA) after the fall of this eastern city in mid-November 1991.
A delegation of anti-Fascist soldiers and anti-fascists of Croatia on Monday morning placed wreaths and lit candles in front of the 'Stone Flower' monument at Jasenovac, erased in memory of victims of a local concentration camp run by the then Ustasha regime in the Second World War.
A delegation of the Jasenovac municipality (some 100 kilometres south-east of Zagreb) also held a wreath-laying ceremony.
This morning, an association of the retired Croatian generals laid wreaths at the grave of the dead General Janko Bobetko, who was the chief-of-staff of the Croatian Armed Forces during the Homeland Defence War, Bobetko was buried in his home-town Sisak (50 kilometres south-east of Zagreb).
Many citizens as well as party delegations and war veterans' associations also lit candles at the above mentioned cemeteries and graves.