Twitter deleted more than 10,000 automated accounts posting messages that discouraged people from voting in Tuesday’s U.S.election and wrongly appeared to be from Democrats.

According to Reuters, most of the accounts were posing as Democrats, the social media company said. The Tweets included ones that discouraged Democratic men from voting, saying that would drown out the voice of women.

They were taken down in late September and early October.

Twitter was alerted to the accounts by the Democratic Congressional Campaign Committee (DCCC).

The DCCC was formed in response to the party's failure to respond to widespread false and negative information on social media about Hillary Clinton during the 2016 election, Reuters reported.

Twitter believes that the network of now-deleted accounts was run from the US, CNN reported.

Last month the state of California signed legislation that bans the use of undeclared bots during elections.