KARACHI, Pakistan Two Philippine Coast Guard ships were reportedly surrounded by Chinese vessels on Monday in a tense standoff in the South China Sea, further raising tensions between the two countries. Two Philippine Coast Guard ships, which were deployed 25 to 30 nautical miles east of Scarborough Shoal in the West Philippine Sea as part of a routine maritime patrol, were blocked by Chinese vessels, the local English daily Manila Times reported. West Philippine Sea is the official designation