Police are investigating the attack.
The 60 Second Pitch
Voters will go to the polls on May 7th.
The General Election has been described over the past few weeks as the "tightest", "most unpredictable" and "most exciting" in a generation.
So, as you prepare to go to the polling station, have you decided who will win your backing?
We asked each of the parties to tell you, in 60 seconds, why you should vote for them.
60 Second Pitch: Scottish Labour Party
Scottish Labour Leader Jim Murphy makes his 60 second pitch to voters
60 Second Pitch: Liberal Democrats
Liberal Democrat Leader Nick Clegg makes his 60 second pitch to voters
60 Second Pitch: SNP
SNP Leader Nicola Sturgeon makes her 60 second pitch to voters
60 Second Pitch: Scottish Conservatives & Unionists
Scottish Conservative Leader Ruth Davidson makes her 60 second pitch to voters
60 Second Pitch: Scottish Green Party
Scottish Green Party Co-Convenor Patrick Harvie makes his 60 second pitch to voters
UKIP was invited to take part in this feature but was unable to do so.
Here is an excerpt from the party's manifesto:
On the major issues of the day - immigration, the economy, our health service and living standards – the establishment parties have repeatedly and knowingly raised the expectations of the public, only to let us down, time and time again.
Now, there is something to vote for, if you believe in Britain.
If you believe that we are big enough to make our own laws, in our own parliament; if you believe we should have the sovereign right to control our own borders; if you believe that we should be fiscally responsible, and stop adding to our national debts and expecting our children and grandchildren to pay the bill, then we are the party for you.
If you believe in these things and that in this year, the 800th anniversary of Magna Carta, you believe we should seize the opportunity for real change in our politics; rebalance power from large corporations and big government institutions and put it back into the hands of the people of this country, then there really is only one choice.
If you believe in Britain, vote UKIP on May 7.
Another girl was airlifted to hospital.
The attack happened on Waverley Bridge.
Opposition parties are criticising the figures.
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