Anti-China protests have erupted at an industrial park in southern Vietnam amid tensions over territorial rows in the South China Sea.
The park’s management said three factories were set on fire on Tuesday. No casualties have been reported.
They said protestors targeted factories owned or managed by the Chinese, and Chinese expatriates.
The protests come after China moved a drilling rig into waters claimed by Vietnam earlier this month.
The management of the Vietnam Singapore Industrial Park (VSIP) said that protestors gathered on Monday in Thuan An town, in the southern Binh Duong province.
On Tuesday they moved on to VSIP’s two industrial parks nearby.
A spokesman for VSIP told the BBC the three factories were set on fire on Tuesday night after workers had gone home.