Israeli tank shellfire killed at least 45 Palestinians as they awaited aid trucks in Khan Younis in the southern Gaza Strip, the territory's health ministry said, adding that dozens of others were wounded.

Israeli tanks fired into a crowd trying to get aid from trucks in the Gaza Strip on Monday, killing at least 51 people, according to medics, in one of the bloodiest incidents yet in mounting violence as desperate residents struggle for food.

A fatal incident involving Israeli tank fire has claimed dozens of lives in Gaza. Here's a breakdown of what happened and what it means for the ongoing conflict.