Mr Le Than, of Le Hieu Dang Club - members includes pro-democracy former high-ranked officials and former Party members - said his Club members planned to go to Bach Dang Wharf (HCMC) to light joss sticks, but only few whom the police didn't know managed to get there, other members were blocked from leaving their house as the local police guarded them since the early morning [of 13 Mar].

Dissident intellectual Dr Mac Van Trang and his wife - well known actress Kim Chi - were under guard at their home [in HCMC].

Mrs Duong Thi Tan, an activist from Saigon, said her home was under police guard for several days but she didn't know what the police's intention was.

In Hanoi, outspoken former teacher Mrs Tran Thi Thao told RFA, a local policeman and several plain clothes police stood guard near the bottom of the staircase of her apartment block and prevented her from going out.

An activist who preferred to remain anonymous said, at King Ly Thai To statue in Hanoi central, a number of police vehicles, district police, police and civilian guards were present but not as large in number as in previous years.

Poet Hoang Hung - of Independent Writers' League - opined that the regime determines to ban all independent activities showing signs that they are in any way organised, whether it's picking up rubbish or grow trees or reacting to China.

Mrs Tran Thi Thao opined that [this year], by allowing the state media to write about Gac Ma and name China as the culprit in the incident, the regime led by Party Chief Trong aims to mollify the people and deceive the West - pretending there is a shift in Vietnam's relations with China; however by suppressing dissidents and activists, the regime wants to prove to President Xi Jinping that those seen as anti-China are still subject to Vietnam's forceful treatment.