Egypt has blocked access to about 20 websites including Qatar's Al-Jazeera since Wednesday night, state media reported.
The sites, including Huffington Post's Arabic language site HuffPost Arabi and independent site Mada Masr, were blocked because they were allegedly "spreading lies" and "supporting terrorism", state-run news agency Mena announced.
The move comes a day after Khaled Ali, a prominent lawyer and former presidential candidate, was released on bail pending trial on Monday on charges of 'raising his middle figure' in public, which is considered obscene in some countries.
Mada Masr, known for taking a strong stance against corruption, tweeted a cartoon Thursday of a man in front of a closed wooden door in the desert with the caption "We have confirmed Mada Masr's website has been blocked. Stay tuned on how to find us again."
HuffPost Arabi also took to Twitter to direct readers to its social media accounts for continued news coverage.
The full list of disabled websites in general-turned-president Abdel-Fattah el-Sissi's latest crackdown on media access was not released.
This is not the first time Al-Jazeera has been at odds with Sissi's government. Egypt drew international condemnation when it arrested three Al-Jazeera journalists — a Canadian, an Australian and an Egyptian — in 2013 and sentenced them to jail time. The three were later released.
Al-Jazeera's news coverage in the years following Egypt's 2011 Arab Spring revolution and the 2013 Sissi-led overthrow of the country's first freely elected civilian President Mohamed Morsi was intensely criticized by the Egyptian government.
Egypt currently ranks umber 161 out of 180 on the World Press Freedom Index.