Twitter appeared to have faced an outage, as several users on Friday morning reported issues while posting tweets. Twitter flashed "Cannot read property 'code' of undefined", "Internal server error" and other such messages when users tried to post tweets at around 10.30am, triggering panic in wake of the worldwide 'wannacry' and ransomware attacks. According to some users, the problem persisted for about 15-25 minutes before it was restored by Twitter. However, the glitch appeared to have impacted only specific regions. While tweets from @htweets could not be posted, its sister handles operating from other cities did not face any issues.