Poland tightened security measures at its airports and Warsaw's subway on Thursday after British police thwarted a terrorist plot to blow up aircraft in mid-flight, the PAP news agency reported.
Some airports in Poland postponed or cancelled their flights to London and a crisis team led by Polish commander-in-chief Marek Bienkowski gathered in Warsaw's police headquarters.
Pawel Biedziak, head of the public transportation office, told PAP that security measures had been tightened at Warsaw Okecie airport and other Polish airports servicing international flights as well as Warsaw's subway.
More police officers, including counter-terrorist police and plainclothesmen, were deployed to safeguard airports and subways. The number of traffic police patrolling main routes to airports has also been increased.
Zbigniew Wassermann, the Polish minister without portfolio, in charge of special services, said there were no indications of a threat of terrorist attacks against Poland. He added that the Polish intelligence services would closely monitor the situation.