There has been a strong aftershock off the Indonesian island of Sumatra, close to the site of last month's earthquake that triggered a devastating tsunami.

There were no immediate reports of injuries or damage from today's (Monday's) magnitude 6.2 quake, which occurred at sea some 60 kilometers from the city of Banda Aceh. The city is the capital of Aceh province, where tens of thousands of people lost their lives in the December 26th disaster.

Since the initial 9.0 magnitude earthquake, the United States Geological Survey has recorded more than 150 aftershocks measuring 5.0 or higher.

Meanwhile, the U.S. military briefly suspended aid flights in Aceh province for a few hours after a Navy helicopter bringing aid to the area crashed today, injuring two people.

United Nations Secretary General Kofi Annan met late Sunday with Maldives President Maumoon Abdul Gayoom during the final leg of the U.N. chief's three-nation tour to survey tsunami damage. Today, Mr. Annan is visiting two islands where all the inhabitants have been left homeless by the disaster.