LISBON (Reuters) - Portugal's Prime Minister Luis Montenegro said on Wednesday he would submit his year-old minority government to a motion of confidence, which could lead to its dismissal if the two main opposition parties vote to reject it, as they have indicated.

Portuguese Prime Minister Luis Montenegro said he plans to seek a confidence vote in a parliament where he only has minority backing, after struggling to put an end to speculation about potential conflicts of interest related to a company owned by his family.