San Francisco: Google on Wednesday updated how it handles political ads as online platforms remain under pressure to avoid being used to spread misleading information intended to influence voters. The internet company said its rules already ban any advertiser, including those with political messages, from lying in ads. But it is making its policy more clear and adding examples of how that prohibits content such as doctored or manipulated images or video.

"It's against our policies for any advertiser to make a false claim -- whether it's a claim about the price of a chair or a claim that you can vote by text message, that election day is postponed, or that a candidate has died," Google ads product management vice president Scott Spencer said in an online post.