Man Utd's Ighalo blasts Nigerian government over protest killings
"I am ashamed of this government, we are exhausted of you guys and we can't take this any more".
The shootings Tuesday night caused an unknown number of deaths and injuries, and sparked global outrage.
The protests have also gained support from several high profile figures with no ties to Nigeria, including Twitter's chief executive Jack Dorsey, and German-Turkish Arsenal player Mesut Özil.
Ighalo, who won 35 caps for the Super Eagles before he retired from worldwide football past year, posted a video from the pitch at the Parc des Princes following United's 2-1 win over Paris Saint-Germain in the UEFA Champions League. "May God see us throuhg in this troubling times", Ighalo's wife wrote.
He also urged Nigerians to stay home.
"Please don't come out because this government, they are killers and they will keep killing if the world do not talk about this", Ighalo said.
His compatriot, Wilfred Ndidi, put up the viral Nigerian flag picture with the caption; Pray for Nigeria.
The Nigeria worldwide posted an image of what appears to be a blood-stained Nigerian flag.
In an emotion-laden voice, Ighalo accused the Nigeria government of killing its people and called on the global to show concern about happenings in Nigeria.
Former Nigeria worldwide soccer star and two-time African Player of the Year Kanu Nwankwo also reacted to unconfirmed reports that protesters were killed during Tuesday's demonstrations. Shots can be heard followed by sounds of people running away.
British-Nigerian boxer Anthony Joshua said he was exploring donations to support local hospitals and provide food packages.
The controversial police unit was disbanded on October 11 and a replacement force will be trained by the International Committee of the Red Cross, Reuters reported Monday, but protesters in Nigeria have demanded further police reforms. "I understand the issue you guys are facing".
Joshua has credited Nigeria for inspiring him professionally.