Concerns were raised in Asian stocks on Friday that the recent rally has gone too far, with the May jobs report leading to another sharp drop in US wages.

Japanese stocks declined, while those in China, Hong Kong and Australia remained flat. The index gained on the S&P 500 after the index ended a four-day winning series on Thursday. Ten-year US Treasury yields fell to their highest level since March. Earlier, the European Central Bank announced a more-than-expected increase in its emergency bond-buying program. There was a slight decline in crude oil.