The ban on liquids being taken through airport security in the UK is to be relaxed, the government has announced.
Increased airport security levels led to disruption in August
New rules from Monday will allow passengers to carry drinks and toiletries through security checks.
They will be limited to 100ml per container and no more containers than would fit in a one-litre plastic bag.
Security experts believe explosives disguised as a liquid would not be able to destroy an airliner if carried in such small quantities.
Limiting the amounts allowed also makes it easier for security staff to check what is being taken on board.
The same rules are being introduced across Europe and will take effect on Monday - almost three months after the clampdown on air security began.
100ml containers in one-litre re-sealable clear plastic bag
Verified prescription medicines essential for flight
Baby milk and liquid baby food
The curbs on carrying liquids came after an alleged terror plot to bring down as many as 10 planes travelling from the UK to the US was foiled.
The Department for Transport (DfT) said essential medicines and baby food are allowed in amounts larger than 100ml. Large musical instruments are also permitted, in addition to one item of cabin baggage.
A DfT statement said: "The security measures introduced at UK airports in August were in response to a very real and serious threat.
"We have always said that we would keep these measures under review and in September we introduced changes which increased the permitted size of cabin baggage that passengers could take on board.
"Following consultations with industry and international partners we can now introduce a change to the ban on taking liquids through the security checkpoint to add to passenger convenience while continuing to maintain rigorous security."
Full details are available on the DfT website.