Video showing German police shooting and seriously injuring a Turkish national during an identity check drew criticism on Friday.
Video of the incident on Thursday shows an individual identified as H.T., 63, throwing a toy truck toward police.
Authorities responded by firing three times at H.T. at close range in Krumbach in German's Bavaria state.
Metin Külünk, AK Party's deputy for Istanbul, confirmed the incident on Twitter.
The police fired at a Turkish national who suffered from Alzheimer's disease, and even he said he is Turkish.
"Our citizen is now in the hospital," Külünk wrote. "I hope the German authorities will do what is necessary," he added.
Police confirmed the incident, saying a Turkish national [who suffered from Alzheimer's disease] seriously got injured when police fired his gun to take down him in Krumbach.
According to a statement, the 63-year-old man who was on someone's property, did not cooperate with police despite being warned.
He became more aggressive and threatened the patrol team and attacked with a sharp object in his hand, it said.
Tear gas and warning shots did not work, according to the statement, that said the individual was shot by police and was seriously injured.
He was taken to the hospital and his injury is not life-threatening, it added.
An investigation was launched into the incident.
