In an effort to tighten sanctions against Serbia, the United States is pressing to ban the shipment of goods through Serbian-controlled territory to other countries, senior Administration officials said today.

A peaceful integration of the remaining Serbian-controlled territories in eastern Slavonia was completed in 1998 under UN supervision.

The major electricity, water and gas installations are in Serbian-controlled territory, so services are fitful at best.

Bosnian Serbs are not a monolith, they argue, a fact borne out by their own refusal to leave Sarajevo for the supposed security of Serbian-controlled territory.

After the request was rejected, Serbian officials effectively expelled this reporter from Serbian-controlled territory in Bosnia on Aug. 15, saying safety at Serbian checkpoints could not be assured.

By doing it that way, Mr. Milosevic and Radovan Karadzic, the Bosnian Serb leader, will not be blamed by their own people for giving back some of Serbian-controlled territory.

Some Bosnian Serb residents have already left, and a two-mile caravan of vehicles carrying household effects crossed the runway at Sarajevo airport today heading toward Serbian-controlled territory.

Few have shown any great interest in returning to a country where many of their former homes lie in Serbian-controlled territory.

When the pilot of an F-117 stealth fighter plane went down in Serbian-controlled territory last weekend, NATO sent in rescue helicopters.

Agrokomerc was granted free-custom trade zone in the Croatian port of Rijeka, and free trade with Serbian-controlled territories.