A dissident Vietnamese blogger known by her pen name 'Mother Mushroom' has arrived in the United States after her surprise release from prison, telling a large crowd of supporters she will "never keep silent" in her fight for democracy in the one-party state.

HANOI - A prominent Vietnamese blogger known as 'Mother Mushroom' was jailed for 10 years on Thursday, her lawyer said, during a brief trial rights groups decried as "outrageous".