The pound is sold off as chances for the separation of Scotland grow, which questions expected interest rates raises in the UK. The sell off on the zloty appeared due to speculations about sonner than expected cut of the interest rates over the ocean.
(...) Very few expected the Scottish independcy poll to be of such significance for the markets. The opponents of separation had had advantage exceeding 10% what caused the subject to be non-existent for the markets' participants.
Marcin Lipka, Cinkciarz.pl analyst