Apple sales: How it made 'biggest profit in history'

US technology giant Apple has reported the biggest quarterly profit ever made by a public company.

Apple reported a net profit of $18bn (£11.8bn) in its fiscal first quarter, which tops the $15.9bn made by ExxonMobil in the second quarter of 2012, according to Standard and Poor's.

Record sales of iPhones were behind the surge in profits.

Kamal Ahmed reports.