YANGON — After crushing the democracy uprising with guns, Burma’s junta stepped up its campaign to intimidate citizens today, sending troops to drag people from their homes in the middle of the night and letting others know they were marked for retribution.

“We have photographs! We are going to make arrests!” soldiers yelled from loudspeakers on military vehicles that patrolled the streets in Yangon, Burma’s biggest city

People living near the Shwedagon Pagoda, Burma’s most revered shrine and a flash point of unrest during the protests, reported that security forces swept through several dozen homes about 3 a.m., taking away many men and even some women for questioning.

A U.N. Development Program employee, Myint Nwe Moe, and her husband, brother-in-law and driver were among those detained, the U.N. agency said.

Dozens of Buddhist monks jammed Yangon’s main train station after being ordered to vacate their monasteries — centers of the anti-government demonstrations — and told to go back to their hometowns and villages.

It was not clear who ordered them out. Older abbots in charge of monasteries are seen as tied to the ruling military junta, while younger monks are more sympathetic to the democracy movement.

“People are terrified,” the acting American ambassador in Burma, Shari Villarosa, said. “People have been unhappy for a long time. Since the events of last week, there’s now the unhappiness combined with anger, and fear.”

In New York, Secretary-General Ban said he would meet with the U.N. Security Council on Friday to discuss possible actions for addressing human rights abuses in Burma, calling the situation here a top international concern.

Mr. Ban said his special envoy, Ibrahim Gambari, delivered “the strongest possible message” to Burma’s military leaders during a four-day visit to this Southeast Asian nation, but added that he could not call the trip “a success.” The junta has not commented on Mr. Gambari’s visit.

Mr. Gambari called on the regime to stop repression of peaceful protests, release detainees, and move more credibly toward democratic reform, the U.N. spokesman’s office said.

Anti-junta demonstrations broke out in mid-August over a fuel price hike, then ballooned when monks took the lead last month. But the military crushed the protests a week ago with bullets, tear gas, and clubs. The government said 10 people were killed, but dissident groups put the death toll at up to 200 and say 6,000 people were detained.

New video broadcast on CNN showed police and soldiers rounding up demonstrators and beating them before loading them on trucks. In one view, about six young men squat on the street, hands on their heads, cringing. One in a red shirt — the color adopted by the protest movement — is singled out for particular abuse.

The video also showed a man lying on the ground, his shirt bloodied, while another man looked around frantically as he tried to help him.

The footage appeared to have been made three or four days ago in downtown Yangon.

Ms. Villarosa said her staff had found up to 15 monasteries completely empty during visits in recent days. Others were barricaded by the military and declared off-limits to outsiders.

“There is a significantly reduced number of monks on the streets. Where are the monks? What has happened to them?” she said.

The atmosphere remained tense, but Yangon inched back toward a normal routine today. Traffic returned and street vendors braved the rain to offer flowers and food to people praying at the main pagoda. Some shops reopened.