UK shares rebounded from closing at their lowest level in three years in the previous session, as weak Chinese GDP figures boosted hopes for further stimulus, sending mining and oil and gas stocks higher, Reuters reported.
Data from China showed that the country's economic growth eased to 6.8 percent in the fourth quarter from a year earlier, in line with expectations but still the slowest since the financial crisis.
The FTSE 350 Mining index was up 4.5 percent, led higher by Anglo American, which rallied 8.5 percent as the price of copper hit its highest in more than a week.
The FTSE 350 Oil and Gas index was up 1.1 percent, with BP and Royal Dutch Shell both gaining over 1 percent.
The blue-chip FTSE 100 index was up 1.3 percent at 5,857.59 points by 0920 GMT, rebounding from closing at its lowest level in three years in the previous session.