11.   Authorities sealed the mailroom and were investigating whether the substance is dangerous.

12.   Fearing disease outbreaks, authorities sealed off Sissano Lagoon in the region, leaving many unrecovered bodies to rot or be eaten by wild animals.

13.   Having driven hundreds of thousands of Kosovars from their homes in systematic expulsions, Yugoslav authorities suddenly sealed the borders earlier this week to prevent people from leaving.

14.   He charged that authorities recently sealed the offices of a printing house frequently used by the opposition media.

15.   He noted that Belarusian authorities sealed the offices last week of a printing house frequently used by the opposition media.

16.   Hours after the speech, police and militants reported authorities were sealing offices of all five extremist organizations throughout the country.

17.   In neighboring Pakistan, authorities sealed off the border along the mountains to block any fleeing al-Qaida from escape.

18.   In neighboring Pakistan, authorities sealed off the border with Paktia province to block any escape by fleeing al-Qaida and Taliban fighters.

19.   In order to prevent such incidents, city authorities had sealed many garbage cans and letter boxes.

20.   Israeli authorities routinely seal the Palestinian territories, purportedly to prevent possible Palestinian terrorist attacks.