China has warned Vietnam to withdraw its ships from disputed waters after vessels from the two sides collided in a tense confrontation. Vietnam has accused China of massing 80 vessels, including navy ships, to back an operation to drill for oil off the disputed Paracel islands. It released video footage to back its claim that Chinese ships had rammed Vietnamese vessels. The US has called for restraint amid fears of possible clashes. A foreign ministry official in Beijing said the Vietnamese patrol ships had collided deliberately. Continue reading the main story Paracel…