Some conservative Twitter users are accusing the company of unfairly targeting their followers as it steps up efforts to get rid of fake accounts.

Prominent conservative pundits and activists said Wednesday that thousands of their followers had been deleted overnight. Other users said they received messages from Twitter asking them to confirm they were real people before being allowed to keep using the service. The hashtag “TwitterLockOut” was trending in the U.S., meaning thousands of accounts were tweeting about it.

“The twitter purge is real,” conservative podcast host Dan Bongino said on Twitter. “Twitter blocked me from twitter ads last night and purged thousands of followers.”

Twitter is seeking out and shutting down automated accounts that pretend to be real people as pressure mounts to purge the service of “bots” that artificially inflate follower counts and advertising metrics. Other fake accounts have been traced to Russian-backed agents that the U.S. government says are working to sow political discord in the country.

It’s unclear if the latest loss of followers is related to bots. A Twitter spokesperson didn’t immediately return a request for comment.

U.S. sales of existing homes fell in January from a year earlier by the most in more than three years. Would-be buyers were stymied by rising prices and a shortage of homes for sale.

The National Association of Realtors said Wednesday that sales dropped 3.2 percent from December to January, the second straight monthly decline, to a seasonally adjusted annual rate of 5.38 million. That was the slowest sales pace since September.

Compared with 12 months earlier, sales dropped 4.8 percent, the steepest year-over-year decline since August 2014.

A lack of available homes is holding back sales, even as Realtors report that more people are visiting open houses.

A California law that sought to prevent age discrimination in the entertainment industry by blocking a popular Hollywood website from posting the ages of actors was struck down Tuesday as unconstitutional.

U.S. District Court Judge Vince Chhabria in San Francisco said the law passed in 2016 violated the First Amendment rights of IMDb.com by preventing it from publishing factual info on its website that provides information about movies, television shows and their casts and crews.

The law was a “direct restriction on speech” and was flawed because it was not narrowly tailored and was “underinclusive” by targeting IMDb, Chhabria said.