Markit Economics released its manufacturing purchasing managers' index (PMI) for Spain on Monday. Spain's manufacturing purchasing managers' index (PMI) was up to 53.5 in April from 53.4 in March.

The increase was mainly driven by a faster growth in output, while input costs declined at a slower pace.

"There were mixed signals from the latest Spanish manufacturing PMI, with output growth accelerating but other key variables such as new orders and employment increasing at slower rates. There was also a noticeable weakening in the pace of cost deflation in April in a sign that inflationary pressures may be returning," a senior economist at Markit Andrew Harker said.