Musk: Twitter purchase "temporarily suspended". But the agreement remains

Elon Musk said the $ 44 billion deal to buy Twitter Inc has been "

", pending certain details and news on spam and fake accounts, all to be investigated.

"The Twitter deal is temporarily suspended pending details to support the calculation that spam / fake accounts actually represent

," Musk said in a tweet.

The company's shares fell

in pre-market trading.

The Californian company, which did not immediately respond to a request for comment, estimated in early May that fake or spam accounts represented less than 5% of its monetizable daily active users during the first quarter.

Twitter also said there are several issues at stake until the deal with Musk is closed, including the question of whether

will continue to spend on Twitter.

Musk, the richest man in the world, CEO of Tesla Inc and SpaceX, had said that one of his priorities would be to remove "spam bots" from the platform.

" I am

" of Twitter, writes Elon Musk on the social after saying he had suspended the agreement.

The stock, however, remains down on Wall Street in the negotiations preceding the opening of the market despite the second tweet of commitment to the acquisition and loses 11%.