Twitter has applied a temporary limit to the number of tweets users can read in a day, owner Elon Musk has said.
In a tweet, Mr Musk said unverified accounts can read up to 600 posts a day.
Meanwhile, verified accounts are temporarily limited to reading 6,000 posts a day.
Mr Musk has said that newly unverified accounts are limited to reading 300 posts per day.
In a statement, he said the temporary reading limits were put in place to address "extreme levels" of data scrapping and system manipulation.