Twitter's active users increase 24 percent to 271 million

A portrait of the Twitter logo in Ventura, California December 21, 2013. REUTERS/Eric Thayer/Files

SAN FRANCISCO (Reuters) - Twitter Inc's monthly active users rose 24 percent to 271 million in the second quarter, as the online messaging service struggles to accelerate its pace of growth. On Tuesday, Twitter reported a 124 percent jump in quarterly revenue to $312 million, beating Wall Street's expectation for $283.1 million. (Reporting by Edwin Chan; Editing by Leslie Adler)