One hundred and fifty-two were injured on Monday in nationwide clashes between supporters and opponents of President Mohamed Morsi, the health ministry has said.
At least 18 people were injured in the canal city of Suez, a major scene of defiance during the 2011 uprising that toppled Hosni Mubarak.
Violence flared during a pro-Morsi march near the flashpoint El-Arbaeen area. Molotov cocktail, rocks and pellets were used, according to reports.
Fifteen were injured during clashes in Gharbiya's Tanta and two others elsewhere in the governorate, health officials said.
Anti-Morsi protesters fought with "infiltrators" attempting to harass a girl in Mahalla's iconic Shoun Square. Police moved in to keep the sides apart.
Seven were injured in similar clashes in Kafr El-Sheikh governorate over another harassment incident. Men wielding bladed weapons and bludgeons clashed with protesters at Shohadaa square where almost 40,000 anti-Morsi protesters had congregated.
Upper Egypt's Aswan also suffered disturbances. Unknown assailants threw Molotov cocktails at tents erected in the city centre by anti-regime protesters. No injuries were reported.
Nationwide clashes have left 16 dead and over seven hundred injured since Sunday.
On Monday, Egypt's Armed Forces handed feuding politicians an ultimatum to solve their disputes within 48 hours or the army would impose its own road map for the country. The move stoked fears of further violence.
The Muslim Brotherhood headquarters in the Nile Delta's Fayoum was stormed and ransacked at dawn on Tuesday with looters making off with furniture and computers amid a reported absence of security, Aswat Masriya reported. Dozens were wounded as clashes ensued in the vicinity of the building with some reportedly using firearms.
A Muslim Brotherhood official in Fayoum claimed police fired on pro-Morsi supporters.
The group's headquarters in Sharqiya was also looted and torched in an attack it blamed on the anti-Morsi Rebel campaign.
Eight people died in a deadly night of fighting outside the Islamist group's Cairo headquarters in Moqattam on Sunday. Guards inside the building fired on youths hurling rocks and fire bombs. A Brotherhood official said two of its members were hurt.