Abdelazim, once a deputy telecoms minister under ousted President Hosni Mubarak, was arrested at his home in the capital Cairo late on Saturday night on suspicion of publishing false news and inciting against the state.
Abdelazim was heavily involved with Egyptian President Abdel Fattah el-Sisi's 2014 election campaign. He has described the experience on his Twitter profile as his "biggest sin." Abdelazim has been known for his harsh criticism of the government since he left Sisi’s campaign that year.
The latest arrest comes days after Egyptian authorities detained award-winning blogger and journalist Wael Abbas, accusing him of involvement in an illegal organization and publishing false news.
Rights groups say Egypt's human and civil rights record has deteriorated under Sisi.
