The University of Michigan said in a statement that it was investigating "a possible act of self-harm", after a researcher's fatal fall from a campus building on 19 March. Liu Pengyu, a spokesperson for the Chinese Embassy in the US, told the BBC on Thursday that they were "deeply distressed by this tragedy".
He said China has "repeatedly lodged solemn representations with relevant US government agencies and universities regarding this case", and have contacted the victim's family to "provide active assistance with the aftermath".