Rome ( CNN ) -- Saying it was `` shocked and alarmed '' after a Chinese man and infant were killed in a botched robbery in Rome , the Chinese Embassy urged Italian authorities to protect Chinese citizens in Italy . Zhou Zheng , 31 , and his 9-month-old daughter were killed Wednesday , according to Italy 's ANSA news agency . Two thieves demanded 5,000 euros ( about $ 6,360 ) from his business 's earnings as he was returning home with his family , according to the report . A bullet passed through the baby 's head and struck Zhou in the heart , autopsy results said , according to ANSA . The Chinese Embassy in Rome issued a statement saying it was `` shocked and alarmed for the tragedy in Rome , and it firmly condemns the killers for their atrocity and inhumane violence . '' The embassy asked Italian authorities to `` apply all the necessary measures '' to find the killers and bring them to justice . `` We also ask that Italy takes all the necessary measures to guard the personal and patrimonial security of the Chinese citizens in Italy , '' the statement said . The killings come amid a wave of unrelated slayings in Rome , ANSA reported . `` Rome 's patience and that of her citizens is finished , '' Mayor Gianni Alemanno said , according to the news agency . `` There are criminal beasts that are operating in our city that must be stopped at all costs . '' About 130 new police officers were to arrive in Rome in Friday , authorities told ANSA . By the end of January , a contingent of 400 officers is to be in place . CNN 's Hada Messia contributed to this report .
A Chinese immigrant and his 9-month-old daughter die in a robbery . The Chinese Embassy says it is `` shocked and alarmed '' Report : Italian authorities vow to deploy more officers to combat wave of slayings .