U.K. markets were closed due to a public holiday on Monday, with Thursday's general election in focus. A hung parliament is looking likely as opinion polls show Prime Minister David Cameron's Conservative Party and the opposition Labour Party are neck-and-neck.
Elsewhere in Europe, Greece is still in focus following further negotiations between the country and its lenders that concluded Sunday.
Negotiations made headway and an agreement could be reached this month or in June, Dow Jones reported on Monday, citing a government spokesman. The next big get-together for Greece and its lenders is the Eurogroup meeting of finance ministers on May 11.
Read MoreDeal or no deal, Greece still faces bankruptcy