Internet giant Google has reported a sharp rise in profits and revenue in quarterly results that nonetheless failed to impress Wall Street.

Net profit for the three months to the end of June came in at $1.84bn (£1.2bn), up by a quarter on the $1.48bn it recorded a year earlier.

Revenue was $6.82bn, also up sharply on the $5.52bn posted a year ago.

However, analysts had expected better and chose to focus instead on operating expenses, which increased sharply.

As a result, shares in Google fell more than 4% in after-hours trading.