San Francisco, United States: Twitter shares took a fresh hit Tuesday after its quarter update showing more losses, and sluggish growth in revenues and the user base of the social media platform.

Shares were down nine percent in after-hours trade after the report, which showed Twitter's loss narrowed to $107 million in the second quarter from $136 million a year earlier.

More significantly for investors, the number of monthly active users edged up to 313 million, up three percent from a year ago and only slightly more than the 310 million in the past quarter.

Revenue rose 20 percent from a year earlier to $602 million but lagged expectations

Twitter chief executive Jack Dorsey said of the results, "We've made a lot of progress on our priorities this quarter."

Dorsey added that "we are confident in our product road map, and we are seeing the direct benefit of our recent product changes in increased engagement and usage."

A Twitter co-founder, Dorsey returned to the CEO job last year in a bid to boost growth and user engagement, with its shares slumping on concerns that it is failing to keep pace in the fast-growing world of social media.

Twitter has never posted a profit since its keenly anticipated stock market debut in 2013 but has been ramping up its advertising efforts to bring in revenue.

Advertising revenue totaled $535 million, an increase of 18 percent year-over-year, with mobile accounting for 89 percent of that.

Revenues from the United States amounted to $361 million, up 12 percent from a year earlier and international revenue grew 33 percent to $241 million.