The girl and two boys died after an incident outside a hotel hosting a St Patrick's Day event in Tyrone.
Jeremy Hunt suggests MPs will only be asked to vote again when ministers are "confident" of victory.
The 10-tonne bronze figure of a woman in a crouching position has been paraded into Plymouth on a barge.
Lee Pomeroy's sisters say a recent rise in knife crime is a "national crisis" which needs addressing.
Severe disruption on Paris-to-London services continues on another day of industrial action.