"We have taken Ping into protective custody after protests erupted in the company when Pakistani labourers saw him throwing the belongings of a Pakistani worker including the Koran," Sardar Gulfraz, a senior police official, told AFP.
Lee Ping was moving the belongings of a Pakistani doctor after he had refused to vacate his room for relocation.
"Doctor Sajid had a dispute with the company management about the relocation of his room. He refused to vacate the room and Ping threw out all his belongings in anger," said local police official Raja Anser Shahzad.
"Local labourers saw Ping throwing out luggage including the Koran and they started protesting. Later, people from outside the company also joined the rally and around 1,000 protesters attacked the offices," Shahzad told AFP.
Police said the incident happened at midday on Saturday, when local Muslims were preparing to offer their main weekly prayers.