GAZA, Jan. 7 (Xinhua) -- Palestinian medical sources said that right after the three-hour ceasefire was over on Wednesday afternoon, Israeli warplanes struck three different targets in northern and central Gaza Strip, adding that three children were killed.

    Residents in eastern Jabalia refugee camp said that an Israeli tank fired a shell at a house, where three children from the Abed Rabbo family were killed, adding they are aged 2, 4 and 6 years old.

    Witnesses said after a short unilateral ceasefire in the Gaza Strip, Israeli warplanes and tanks resumed airstrikes and shelling targets, which Israel says belong to Hamas movement, all-over Gaza Strip.

    They told local radio stations that even during the alleged three-hour unilateral Israeli ceasefire, Israeli warplanes and tanks hit several targets in northern and southern Gaza Strip.

    Israel has earlier announced that it would stop air and ground offensives on the Gaza Strip for three hours to enable the residents to store food, water and medicines. However, citizens said that Israel kept firing at Gaza targets.

    Meanwhile, during the short calm that dominated the Gaza Strip, an International Committee of the Red Cross (ICRC) crew managed to take the bodies of two Palestinians from al-Samouni family.

    An Israeli airstrike on the family's house in Zeitoon neighborhood on Monday killed seven members of the family, said the residents, adding that dozens were alive under the rubbles and were taken to the hospitals.

    Medical sources said that the death toll since the beginning of the Israeli military air and ground offensives on the Gaza Strip in Dec. 27, is around 700 and 3000 were injured.