Hanoi, March 22 -- More than 60% of international airlines have either increased or are planning to increase airfares from mid-March, as surging fuel costs continue to put pressure on the global aviation industry, according to the Civil Aviation Authority of Vietnam (CAAV). The CAAV said on March 21 that it is closely monitoring and assessing the potential impact of ongoing tensions in the Middle East on Vietnam's aviation sector. Rising geopolitical instability has driven global aviation fuel prices sharply higher, prompting many international carriers to introduce fuel surcharges as a way to offset mounting operating costs and maintain stable services. A rapid survey conducted by the CAAV on March 20, covering nearly 40 international an...