A second Nigerian man was arrested Sunday after reportedly locking himself in an airliner's bathroom and becoming verbally disruptive upon landing.

A law enforcement official tells the Associated Press the incident took place onboard Northwest Airlines flight 253 flying from Amsterdam to Detroit -- the same flight involved in a separate incident on Christmas Day.

Pilots on Sunday's flight requested that security remove the man, but law enforcement sources say he did not pose a threat to the security of the plane.

The remaining 255 passengers were safely taken off the plane.

Meanwhile, the man who federal authorities say is at the center of a failed attempt to blow up a passenger jetliner on Christmas Day was reportedly released Sunday from a Detroit hospital as airports across the nation, including here in New York, tighten passenger screenings and other security measures.

According to the Associated Press, Umar Farouk Abdulmutallab, 23, has been taken to a secure location where he remains in the custody of federal marshals.

The Nigerian native -- whom federal agents have charged with willfully attempting to destroy or wreck an aircraft -- was being treated for burns at University of Michigan Medical Center in Ann Arbor.

According to the affidavit, as Northwest Flight 253 descended toward Detroit, Abdulmutallab set off a device which sparked a fire, instead of an explosion.

Secretary of Homeland Security Janet Napolitano says investigators did not have enough information to keep a suspect in an alleged terror plot from boarding a plane bound for Detroit.

She says Abdulmutallab's name came to their attention last month, but they did not have sufficient information to elevate him to an official terror watch list or no-fly list.

Abdulmutallab's father had warned the US embassy in Nigeria about his son's religious beliefs.

The Obama Administration is now reviewing the system for placing suspects on terror watch lists and airport security procedures to determine how the alleged attacker got on the plane with explosive materials.

"One of the things we will do, because that's a system that has been in place for a number of years, one of the things we will do is go back and look and say maybe in this day and age with the kind of environment we have, we should change some of those protocols, but right now he was on a generic list if I could use that phrase, but we did not have the kind of information that under the current rules would elevate him," Napolitano said.

Napolitano also says they are investigating the suspect's claims of receiving training and instructions from al-Qaida operatives in Yemen.

She adds all the right security measures were taken following the incident.

International airline carriers are now trying to limit the activities of passengers and crew in the last hour of flight time.

Air Canada says the temporary restrictions not only forbid passengers from getting up, but also restrict access to carry on luggage and passengers cannot have items on their laps during that time period.

Flight attendants on some domestic flights are also following similar procedures.

Although the security level has not been raised at airports, security procedures have been tightened prior to boarding, including extra pat-downs of passengers and more bomb-sniffing dogs.

And while Governor David Paterson says there have been no specific threats against any airports in the state, he has directed a National Guard Task Force to provide additional security at airports for the remainder of the holiday season.

As a result of the additional security, travelers are being advised to allow extra time.

There are sure to be longer lines at check in counters and security checkpoints.

"The last hour we had to stay in our seats with our seat belts on and couldn't have blankets or pillows or anything covering our laps," said one airline passenger.

"We were pretty sure that security would be highly increased. So we came early, brought food, and they' ll make us throw it out," said another airline passenger.

Some airlines are advising passengers to arrive as many as three hours before their flight departure to accommodate the added security.

As always, the Department of Homeland Security is urging travelers to report any suspicious behavior.

Meanwhile, Long Island Congressman Peter King is taking aim at President Barack Obama for not speaking publicly about the alleged terror plot.

The president and his family are on vacation in Hawaii until next Sunday.

In a phone interview, King -- who is the Chairman of the Homeland Security Committee -- says times like these call for a leader.

"This came very close to being one of the greatest tragedies in the history of our country," King said. "If we had lost almost 300 people on Christmas Day, this would be remembered forevermore as the Christmas Day Massacre. We avoided it by luck and because of a number of very courageous passengers. This was an assault on the United States. And it is important at a time like this the president of the United States or someone in the administration with stature would step forward -- whether it be the vice president or the secretary of Homeland Security."

White House officials say the president has been fully briefed on the situation and has been speaking via telephone with Homeland Security advisors.