Canadian airports boost security after U.K. arrests

Thousands of travellers faced long lineups but experienced shorter delays than expectedacross Canada on Thursday as airports beefed up security after British police announced they had foiled an alleged bomb plot.

The Canadian Air Transport Security Authority imposed new security measures including banningall liquids and gels on carry-on luggage forflights within Canada, and to and fromtheUnited Statesand United Kingdom.

As a result, there were more checks by security officials for such items, and passengers could be seen rummaging through their luggage todiscardthe products.

News reports suggested the alleged bombers may have planned to use liquid explosives on carry-on luggage, after British police announced the arrests of more than 20 suspects on Thursday.

Canadian officials said exceptions would be made for passengers with prescription medications, insulin and other essential non-prescription medicines.

People travelling withsmall children or infantswould beable to carry onbaby formula, breast milk and juice.

Transport officials said the new restrictions would be in effect for 72 hours, but may be extended. Senior government officials said these new restrictions may eventually become standard protocol.

In a news conference on Thursday morning, Public Safety Minister Stockwell Day said Canadian officials are co-operating with British and U.S. authorities, but there is no evidence at this point that any Canadians were involved in the alleged bomb plot.

Day also urged those travelling in Canadian airports to be patient and expect delays.

Measures in line with U.S.

The increased security measures were in line with those imposed in the United States.Security inBritish airports was stricter, with all carry-on bags banned.

Air Canada officials said the regulationsare in effect for their flights departing from Britain. The airline also stated that it was allowing customers travelling to, from and viaBritain to change their scheduled flights without penalty.

Transport Minister Lawrence Cannon said every precaution has been taken to protect Canadians. He also said police officers will be puton long flights.

"It is still safe to fly and I encourage you all to do so," Cannon said at a news conference.

Canada's major international airports, including in Toronto and Vancouver,experienced minor delaysThursday morning, as the effects of cancelled and delayed flights in the United States and Britain trickled down.

London's Heathrow Airport was closed to all incoming flights not already in the air after the arrests were announced. Securitywas alsoincreased at all airports in the United Kingdom.

The U.S. government raised its threat alert to red, the highest level, for commercial flights from Britain to the United States.

Long lines at biggest airports

At Canada's busiest airport, Toronto's Pearson International Airport, long lines moved quickly and efficiently.

Scott Armstrong, a spokesman for the Greater Toronto Airports Authority, advised travellers to leave ample time for delays and cancellations.

"I would definitely call ahead and check with the airline on the time of your flight, get to the airport a little early if you can, and obviously bring your patience with you, the most important thing today with new security measures in place."

Ottawa International Airportbegan enforcing stricter restrictions than most airports. It bannedthe sale of any drinks past the check-in point and police tape covered pop machines to prevent the purchase of drinks.

At Vancouver International Airport, a line snaked longer than acity block from the United Airlines check-in for flights to several U.S. cities.

Reports from U.S. security officials said the suspects in the alleged bomb plothad targeted United, American and Continental airlines.

Prairie delays minimal

Meanwhile, many airports in the Prairie provinces were experiencing few flight delays.

"Just because of the timing of things, we were able to work on this throughout the night, get some staff in here and try and works things out," said Traci Bednard, a spokeswoman for Edmonton International Airport.

"So while there are some lineups, we aren't seeing any major delays at this time."