The Hanoi police Thursday summoned a second member of an anonymous group accused of publishing dozens of defamatory posts on Facebook against many celebrities a week after arresting a woman.
Nguyen Thi Lan Phuong, to be questioned for “abusing democratic freedoms”, was not arrested because she is pregnant, the police said.
Last Thursday they had arrested Tran Thi Huong Giang, 37, allegedly the key member of a group of several individuals anonymously posting libelous notes on their Facebook accounts.
Phuong and Giang have many Facebook accounts that are followed by thousands of regular readers, they said.
Some of the most popular posts accused top models of working for a high-end prostitution ring and pop stars of having affairs with rich married men.
Hours after Giang's arrest, a surprise statement was released on the group's Facebook accounts saying the anonymous crusaders would continue to unmask the "ugly side of the showbiz world.”
The statement, which the police later said Phuong had written, claims that the real mastermind of the group is in New York.
It also says that the charges by the group are not libellous because there are documents to prove them.
The police said they are expanding their investigation into the case.