Do these incidents signal further terror attacks in the UK?

The police have evacuated large parts of Birmingham city centre. Birmingham is the UK's second city. (Another report about this incident is here.)

A fire broke out earlier this evening at the Hard Rock Cafe in London.

The second incident might just be a fire (a serious one by the sound of it), with no implications for security, but the Birmingham one sounds rather more sinister, at first reading.

I would rather not live in quite such interesting times (*) as these.