Complex sentence: Shuja'iyya is a densely populated area of the city with 92,000 residents, and according to Amnesty International, all UNRWA shelter facilities were overflowing and the residents had nowhere to go.
Split into simpler sentences: Shuja'iyya is a densely populated area of the city with 92,000 residents according to Amnesty International. The UNRWA shelter facilities were overflowing and many of the residents had nowhere to go.