By Jonathan Davies

Twitter has reported another set of disappointing results for the first three months of 2015.

The social media giant said revenues were up 74% from the same period last year to $436 million, but growth was slower than expected.

It also reported a net loss of $162m, nearly $30m more than it lost a year ago.

Twitter said it expects the slower revenue growth to impact on its end of year results.

The number of people using Twitter grew by 18% to 302 million. And chief executive Dick Costolo said he's confident in the company's "long-term opportunity".

"We have a strong pipeline that we believe will drive increased value for direct response advertisers in the future," he said.