A night of rockets and airstrikes on Tuesday.
Conflict between Israeli and Palestinian forces killed at least forty people and injured another 200.
Israelis pounded Gaza City with hundreds of airstrikes from Tuesday night and Wednesday morning, flattening a 13-story building and killing at least 35 Palestinians,10 of whom were children.
Israeli forces said that their attacks were meant to target Hamas intelligence leaders, who are responsible for attacks on Israeli cities.
In retaliation, Hamas fired another 210 rockets at the Israeli cities of Beer-Sheva and Tel Aviv, killing five people.
This latest clash is by far the heaviest offensive exchanged between Palestinians and Israelis since the war in 2014 which killed more than 21-hundred people.
Violence is now spilling over in local communities in Israel.
In Umm Al-Fahm, riots flared up among Arab youths, who were angered by the recent events.
They hurled rocks and set fire to synagogues throughout Tuesday night.
Officials say 21 people were arrested as a result.
The escalating violence began in Jerusalem with clashes between Israeli police and Palestinians at the weekend, and Israeli attempts to evict Palestinians from a neighborhood in the east of the city.
International figures, including Pope Francis and UN Secretary-General Antonio Guterres, are urging an end to the violence.
Kim Yeon-seung, Arirang News