The stand-off sparked a wave of anti-China protests in Vietnam and warnings from Beijing that Hanoi should not attempt to involve the U.S. in a bilateral dispute.
Fifth Day of Protests
Nearly 100 Vietnamese marched peacefully outside the Chinese embassy in Hanoi on Sunday, despite increased security following an agreement between Chinese and Vietnamese officials to settle maritime disputes.
Vietnam and China have held separate live-fire military exercises in the South China Sea after Hanoi accused Chinese ships of ramming one oil survey ship and cutting the exploration cables of another.