Twitter experiences sign in issues, down for many users

In the latest in the long series of Twitter outages, many users are unable to login to their accounts to the popular microblogging service.

A two-sentence post on its Twitter Status blog, that updates users on the status of the Twitter service, says, "Some users are currently having trouble signing in to Twitter. Our engineers are currently working to resolve this."

Twitter hasn't yet posted further details.

Some users are also reporting of incorrect timestamps on some of the tweets.