Sweden's foreign ministry on Tuesday summoned the Chinese ambassador after Swedish book publisher Gui Minhai was jailed in China for 10 years on charges of illegally providing intelligence abroad. "We have been seeking confirmation from Chinese authorities and in this regard the state secretary here at the ministry of foreign affairs summoned the Chinese ambassador where we reiterated our demands that Gui Minhai be released," spokesman Johan Ndisi told AFP. tl-hdy/jj/klm