（中央社柏林20日綜合外電報導）由於一些未經證實的媒體報導指稱恐攻威脅，警方表示，德國西部數座機場今天加強安全防衛工作。
根據聯邦警方發言人，重裝警察今晚在數座機場巡邏，包括斯圖加特（Stuttgart）機場、卡爾斯魯厄/巴登-巴登機場（Karlsruhe/Baden-Baden）、腓特烈港（Friedrichshafen）機場和曼罕（Mannheim）機場。
這名發言人表示，警方加強安全防衛工作將持續至接獲進一步通知為止。
這些機場的發言人指出，到目前為止，沒有航班受到影響。
部分媒體推斷，警方加強安全防衛，是因為發現包括一名激進伊斯蘭教徒在內的4名男子，據稱懷疑他們計劃攻擊。對此，警方未加證實。
「每日鏡報」（Tagesspiegel）報導，數天前，這些男子在斯圖加特機場被監視器拍到，他們逗留在金屬探測器附近，並未要搭機且未攜帶行李。
西南廣播公司（Suedwestrundfunk）也報導，摩洛哥當局已通知德國，他們截取到可能對德法邊界附近一處機場發動攻擊的對話。
德國城市羅伊特林根（Reutlingen）警方表示，為了以防萬一，小型機場也已加強安控。（譯者：徐睿承/核稿：張曉雯）
Germany’s biggest airports are on alert after four suspected terrorists were spotted staking out Stuttgart airport, reports say.
Police are said to be hunting for a son and father from North Rhine-Westphalia and two others seen taking photos of the airport’s terminal and grounds.
Details of the suspects were passed to German police by Morocco’s secret service, reports say.
This comes a week after a terror attack across the border in France.
Three people were killed by Cherif Chekatt near a Christmas Market in Strasbourg, which is some 150km (93 miles) from Stuttgart.
Police told public broadcaster ARD that security forces were on alert at German airports, while Bild website said warnings had been extended to all 14 major hubs.
‘Spying attempts’ detected
Since the Strasbourg attack, suspicious activity had been spotted at both Stuttgart Airport and at Charles de Gaulle airport in Paris, public broadcaster SWR reported.
The father and son were captured on surveillance cameras taking photos around the airport, but had disappeared by the time police arrived.
The Stuttgart airport suspects’ names as well as details of their communications were reportedly given to police by intelligence officials in Morocco.
German police would not confirm the reports, with spokesman Roman Strohmayer saying only “we have information that for the moment cannot yet be judged conclusively.”
But, he told Bild website: “We have detected spying attempts at Stuttgart Airport and have massively tightened our security measures at the airport in cooperation with the state police. ”
Germany was targeted just before Christmas in 2016, when Tunisian jihadist Anis Amri ploughed a lorry into a Christmas market in Berlin, killing 12 people and leaving dozens more wounded.