CHENNAI: Indian police detained scores of people for blocking highways in a protest against food poisoning incident at a Foxconn India unit, which makes iPhones for Apple Inc, a police official said on Sunday.

More than 150 employees at Foxconn's production unit in southern India were hospitalised after a bout of food poisoning at Foxconn's dormitories, where a majority of its staff lives. 

Food poisoning sparked protests by workers and their relatives, who blocked a key Chennai-Bengaluru highway for several hours, said a police official said.

"Nearly 70 women and 22 men have been detained since Saturday for blocking highway," the official said.

Foxconn did not immediately respond to a request for comment.

(Reporting by Sudarshan Varadhan; Writing by Rajendra Jadhav; Editing by Michael Perry) ((rajendra.jadhav@thomsonreuters.com; +91-22-68414378 ; Reuters Messaging: rajendra.jadhav.thomsonreuters.com@reuters.net))