Update: Qatari Airlines scare not terror-related

A fight between a passenger and flight attendants on a Qatari Airlines plane sparked a hijacking scare Thursday, prompting the plane to return to Amman on a day of increased tensions on flights after a foiled terror plot in Britain. The passenger, an Eritrean man, screamed and pushed an attendant after being told he could not leave his seat to use the bathroom, a Jordanian government spokesman said. Initial reports from Jordanian airport security officials said the Eritrean was carrying a canister with a liquid in it as he tried to force his way into the cockpit. But government spokesman Nasser Judeh told The Associated Press that it "was a quarrel and not a hijacking attempt" and that the liquid was a medicine.