A fund which is operated by J. P. Morgan Chase & Co. is negotiating with Twitter Inc. to acquire a minority stake in the rapidly growing microblogging company, people aware of the matter said.

The investment, which might worth Twitter at more than four billion dollars, will be doled out from the bank's new $1.2 billion digital growth fund, these people stated. Exact terms of the probable deal couldn't be known.

There is an ongoing discussions taking place between J. P. Morgan and Twitter, and there is no guarantee a deal will be materialized, the people added.

J. P. Morgan also has acquired a considerable amount of Twitter's shares on exchanges for private-company stock, apart from its talks for a direct stake in the company, stated one person who is familiar with the matter.

A spokesman from Twitter said that the company doesn't comment on interest by other companies. A spokesman from J. P. Morgan declined to comment.

J. P. Morgan, in a regulatory filing last week stated that it had risen in the tune of $1.2 billion for the new fund, much more than the preliminary target of between five hundred million dollars million and seven hundred and fifty million dollars reported by The Wall Street Journal.

The fund, being run out of the asset-management unit of J. P. Morgan will target private Internet and digital-media companies that have steady revenue, cash flow and an up-and-running business model,

Apart from the possible deal with Twitter, which was reported previously by the Financial Times, the J. P. Morgan fund could also be interested in Zynga Inc., the online gaming firm, which is in discussions to raise nearly five hundred million dollars from institutional investors, one of the people aware of the matter said.