Hundreds of unionised workers at Blackstone Group-owned Pinnacle Foods have voted in favour of strike action in the US.

The workers were balloted in Ford Madison by the United Food and Commercial Workers International Union (UFCW) on Sunday (6 January). In the vote, 400 workers backed strike action over Pinnacle's planned pension reforms.

However, union officials indicated there is still time for negotiation to avoid a strike at the plant, which produces canned food products, including Vienna sausages, Armour brand corned beef hash, beef stew and chili.

"I hope this strike vote sends a strong message to the company and moves the negotiation process to a successful conclusion,” said local UFCW president Darin Boatman.

Pinnacle, which also owns Birds Eye Frozen foods, has had a run of declining earnings of late. In November, the firm booked a drop in third-quarter profits, which were hit by charges related to restructuring and refinancing.