Israel has pounded the Gaza Strip for a seventh day in a row as the besieged Palestinian enclave faces a growing humanitarian catastrophe.

Israel has ordered 1.1 million people to move to southern Gaza within 24 hours, raising fears that an Israeli ground operation is imminent.

Israel says as many as 300,000 Israeli troops are amassed near Gaza and are getting ready for war with Hamas.

Here are the latest casualty figures as of October 13, 6:00pm local time (15:00 GMT):

Gaza

• Killed: At least 1,799
• Injured: At least 6,388

Occupied West Bank

• Killed: At least 46
• Injured: More than 700

Israel

• Killed: At least 1,300
• Injured: At least 3,400

The figures have been reported by the Palestinian health ministry, Palestine Red Crescent Society and Israeli Medical Services.

More than 423,000 people have now been forced to flee their homes in Gaza due to the Israeli bombardment and the World Health Organization warned that Gaza’s health system has reached "breaking point" and there is little time to prevent a humanitarian catastrophe.

Residents in Gaza have flocked to hospitals and United Nations schools for safety, hoping that Israel will abide by international law and not attack those coordinates.

However, places of shelter have also not been free from Israeli attacks.

Here is a list of infrastructure and other facilities that have been damaged or shut down in Gaza since Saturday.

Sixteen years of Israeli blockade

Gaza has a population of about 2.3 million people living in one of the most densely populated areas in the world. Located between Israel and Egypt on the Mediterranean coast, the strip is about 365sq km (141sq miles).

Since 2007, Israel has maintained strict control over Gaza's airspace and territorial waters and restricted the movement of goods and people in and out of Gaza.

Following Hamas's attack, Israeli Prime Minister Benjamin Netanyahu has threatened to turn Gaza into a "deserted island" and warned its residents to "leave now".

How the Hamas attack unfolded

On Saturday morning, at about 6:30am (03:30 GMT), Hamas fired a huge barrage of rockets into southern Israel with sirens heard as far away as Tel Aviv and Beersheba.

The group said it launched 5,000 rockets in the initial barrage. Israel’s military said 2,500 rockets were fired.

About an hour later, fighters crossed into Israel in an unprecedented multipronged operation through land, air and sea. Most fighters entered through breaches in security barriers separating Gaza and Israel.

Hamas’s surprise attack came after Israeli settlers stormed the Al-Aqsa Mosque compound in recent days and a record number of Palestinians were killed by Israel in recent months.

At 9:45am (06:45 GMT), blasts were heard in Gaza and at 10am (07:00 GMT), Israel’s military spokesperson said the air force was carrying out attacks in Gaza.

Gun battles continued between Israeli forces and Palestinian fighters in several areas of southern Israel.

Israeli air attacks continued late into the night as did rocket fire into southern Israel.

Gaza's densely populated neighbourhoods

The Gaza Strip comprises five governorates: North Gaza, Gaza City, Deir el-Balah, Khan Younis and Rafah.

North Gaza extends for 10km (6 miles) and shares the only crossing into Israel through Beit Hanoon, also known as the Erez crossing.

North Gaza is home to the Jabalia refugee camp, the largest in the strip.

Gaza City is the largest and most populous city within the Gaza Strip, with more than 750,000 residents. Rimal, Shujaiya and Tel al-Hawa are among its most well-known neighbourhoods.

At the heart of the Rimal neighbourhood is al-Shifa Hospital – the largest medical facility in the Gaza Strip.

Deir el-Balah is one of Gaza’s largest agricultural producers. It is also home to four refugee camps: Nuseirat, al-Bureij, al-Maghazi and Deir el-Balah.

Gaza’s only operating power plant is located along the district’s boundary with Gaza City.

Khan Younis is home to some 430,000 people. At its centre is the Khan Younis refugee camp, where about 90,000 people live.

Rafah is the southernmost district of Gaza with a population of about 275,000. Rafah is also the name of the crossing with Egypt that is located here.

Both Israel and Egypt have kept their borders largely shut, and are responsible for further deteriorating the already weakened economic and humanitarian situation.