The looting took place on Tuesday afternoon, Captain Godfrey Maditsi said.
“We did not get any reports of anyone injured,” he said.
On Wednesday morning the situation in Thokoza was under control, with no incidents reported overnight.
No further arrests had been made since three people were detained for public violence on Tuesday, after residents protesting the removal of illegal electricity connections barricaded roads.
The protest began on Monday when the Red Ants and police went to Imbeliseni informal settlement looking for illegal electricity connections.
The Ekurhuleni metro said on Tuesday it had intensified its campaign to remove illegal connections in the municipality.
It said in a statement that over 17,000 illegal connections had been removed since the campaign started two months ago.
Municipal spokesman Sam Modiba said illegal connections saw the city losing R36 million per annum.
“This translates to losses of about R2.8m to R4.9m per month,” Modiba said.