Airlines shares were broadly lower on Monday after a Nigerian man was charged with trying to blow up a Northwest Airlines plane on Christmas Day.

Shares of Delta were down 2.97 percent to $11.42 in early trade on the New York Stock Exchange. AMR Corp, parent of American Airlines, saw its shares fall 2.7 percent to $7.92.

Shares of UAL Corp, parent of United Airlines, were down 3.06 at $12.69 on Nasdaq. Shares of US Airways Group were down 2.8 percent at $5.23.

The airline industry has struggled this year with economic recession and falling demand from well-heeled business travelers.

Experts have said renewed terror concerns and potentially tighter airport security measures could dampen business travel demand just as it recovers.