Activist Kate O'Sullivan managed to get through tight security to confront Mr Blair as he held a book signing in Dublin.

The 24-year-old from Cork claims to have queued for 90 minutes and went through airport style security - handing in all her belongings and going through a metal detector - before she attempted to arrest Mr Blair.

LONDON (Reuters) – God did not create the universe and the "Big Bang" was an inevitable consequence of the laws of physics, the eminent British theoretical physicist Stephen Hawking argues in a new book.

In "The Grand Design," co-authored with U.S. physicist Leonard Mlodinow, Hawking says a new series of theories made a creator of the universe redundant, according to the Times newspaper which published extracts on Thursday.

"Because there is a law such as gravity, the universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist," Hawking writes.

"It is not necessary to invoke God to light the blue touch paper and set the universe going."

Hawking, 68, who won global recognition with his 1988 book "A Brief History of Time," an account of the origins of the universe, is renowned for his work on black holes, cosmology and quantum gravity.