Some 50 Palestinians lost their lives on Monday, while Israel's invasion of the Gaza Strip sparked armed Palestinian groups to launch dozens of projectiles across the border.

Israeli shelling in the Gaza Strip on Monday morning killed 14 members of two families whose homes came under fire.

Israeli ground troops, backed by tanks, bulldozers, and helicopters have now encircled Gaza City and cut the Gaza Strip in two. On Monday the Israeli defense minister declared the City “partially besieged.”

Palestinian fighters continue to exchange fire with Israeli troops, primarily in northern towns and the outskirts of densely-populated Gaza City.

Maan's Gaza correspondent added that dozens of artillery shells landed in residential houses in the Al-Zaytoun neighborhood and east of Jabalia Refugee Camp.

Armed ground are launching projectiles and setting off explosive charges against the invading soldiers, the correspondent added.

Meanwhile, Israeli warplanes attacked sites in the Tal Al-Hawa neighborhood west of Gaza City and targeted a residential building in Burj Al-Saadeh in the same neighborhood.

Fighter jets renewed the shelling of dozens of tunnels in the southern Gaza Strip, as well, as late as Monday evening, Maan's correspondent said.

A total of 531 people have been killed in ten days of Israeli air, sea, and ground attacks. Over 2500 have been injured. Since ground forces moved in on Saturday night, 82 have been killed.

Midmorning on Sunday, Israeli warplanes bombed a house in the town of Beit Hanoun, where Palestinians were mourning the death of a paramedic who was killed on Saturday. Some 40 others were wounded in this most recent attack.

Another Israeli airstrike targeted Abu Reida area in Khuza'a, east of Khan Younis, in the southern Gaza Strip. Casualties were reported.

Earlier, a man from Beit Lahia in the northern Gaza Strip was killed by Israeli ground forces in the Al-Atatra neighborhood. Medics also said they transferred two dead bodies from Jabalia Refugee Camp in the northern Gaza Strip to Kamal Udwan Hospital.

Seven members of the Abu Eisha family were torn to pieces by shelling, said medical officials at Al-Shifa Hospital in Gaza City. According to the medics the parents and their five children were killed when Israeli warships shelled their home in the Al-Mashtal area in the north of Al-Shati Refugee Camp, on the shore west of Gaza City.

Medical officials at Al-Shifa hospital also confirmed on Monday morning the deaths of seven people, including four children all members of the Samuni family in the Zaytoun neighborhood of Gaza City. Family members who managed escape the shelling claimed more than seven people may have been killed.

Jalal Samuni said told Maan's reporters at Al-Shifa Hospital that more than 20 people were left inside the house which was bombarded, and he fears that many of them were killed. He explained that the neighbors gathered in the house of Arafat Samuni who came to the area yesterday. He said that advancing Israeli troops told residents to stay in their homes. Then Israeli forces shelled the house, he said.

Hospitals in Gaza are also becoming targets. The Al-Wafa Hospital eastern Gaza Strip received warning that they would be shelled, but the hospital administration and staff refused to evacuate on account of the number of injured people being treated there. Some of the wounded have been injured so severely that they cannot be safely transferred.

At Al-Shifa Hospital, the largest in the Gaza Strip, Israeli warplanes bombed the adjacent Al-Shifa towers, home to the Health Committees.

Earlier also in the Zaytoun area killed a five-year-old girl and her grandfather, members of the Al-Hilou family. The girl’s mother was critically injured. All the victims were evacuated to Al-Shifa Hospital.

Al-Umma University of Police Sciences in Al-Nuseir neighborhood in Gaza City was also bombarded. A car was targeted west of Al-Shifa tower in Al-Shati camp, and as a result two were injured.