Three Qassam rockets fired Tuesday afternoon from the Gaza Strip landed in the Sderot area, five days after a ceasefire enacted between Israel and Palestinian militant groups last week.

Israeli Prime Minister Ehud Olmert responded in a statement that the Qassam attack was "a clear violation of the ceasefire understandings."

The Prime Minister's office added that Olmert "warned that the truce may be short-lived. ...Israel has warned against such breaches and will now consider the counter measures at its disposal."

Palestinians observe the damage in a house after an Israeli military operation in the West Bank city of Nablus June 24, 2008. (Xinhua/Reuters Photo) 

Among the three rockets, one struck a garden in Sderot and two others hit the open area of the western Negev, causing minor property damage, a spokesman of Israeli police Micky Rosenfeld told Xinhua.

One person was lightly wounded in the barrage, and two others were treated for shock, Rosenfeld added.

Islamic Jihad's al-Quds Brigades claimed responsibility for firing the Qassam rockets, according to the website of Israeli daily Yedioth Ahronoth.