Sterling titled higher in American trade away from March 21 lows for the third straight session against the dollar, following earlier data from Britain and amid a lack thereof from the US.
As of 04:15 GMT, GBP/USD rose 0.14% to 1.4063 from the opening of 1.4044, with a session-high at 1.4089, and a low at 1.4021.
Earlier UK data showed manufacturing PMI accelerated to 55.1 from 55.0 in February, beating expectations of 54.8, while Prime Minister Theresa May's spokesman asserted in earlier remarks that a risk of war with Russia is growing by the moment.
The spokesman said Britain is looking for a suitable response to the threats and aggressive behavior from Russia, noting that challenges faced between the two countries could drag on for years, after the UK accused Russia of poisoning a Russian double agent and his daughter inside Britain.