3 sentences

1. 劫匪扣押了数名人质。

   jié​fěi kòu​yā le shù míng rén​zhì.

   The robbers held several hostages.

   Source: Dong Chinese Dictionary

2. 警方在边境扣押了这名可疑男子。

   jǐng​fāng zài biān​jìng kòu​yā le zhè míng kě​yí nán​zǐ.

   The police detained the suspicious man at the border.

   Source: Dong Chinese Dictionary

3. 海关依法扣押了这批走私货物。

   hǎi​guān yī​fǎ kòu​yā le zhè pī zǒu​sī huò​wù.

   Customs seized the smuggled goods according to the law.

   Source: Dong Chinese Dictionary