Singapore Airlines launches biofuel-powered flights
Singapore Airlines flight Reuters

Singapore Airlines has changed some of its flight routes between Asia and the U.S. in response to North Korea's missile tests, CNNMoney reported.

The airline rerouted its daily flights between the South Korean capital Seoul and Los Angeles after a North Korean missile launch in July, the report said quoting a spokesperson for Singapore Airlines.

It hadn't previously announced the changes before this week.

Tensions on the Korean peninsula have risen markedly in recent months after North Korea's latest missile and nuclear tests, conducted in defiance of international pressure and United Nations resolutions.

North Korea said last week it had tested its most advanced intercontinental ballistic missile yet, which was capable of reaching the United States.

News of Singapore Airlines' change followed a crew on board a Cathay Pacific aircraft seeing a North Korean missile blow up over the Sea of Japan last week.

Korean Air said the pilots on two of its flights bound for Seoul "saw a flash and everyone is assuming it should be the missile because of the timing."