The alleged perpetrator of Tuesday’s terrorist attack in New York planned it for weeks, according to police, and appeared to “have followed almost exactly to a T the instructions that Isis has put on its social media channels”.

警方表示，周二在纽约发动恐怖袭击的犯罪嫌疑人此前已策划了数星期，而且似乎“几乎完全遵循了ISIS在其社交媒体频道上发布的指示”。

Sayfullo Saipov, the suspected driver of a pick-up truck that ploughed through pedestrians and cyclists on a bike path in lower Manhattan, had never been investigated by either the Federal Bureau of Investigation or the New York police intelligence unit, John Miller, deputy commissioner of the NYPD, said at a news conference on Wednesday.

纽约警察局(NYPD)副局长约翰•米勒(John Miller)周三在记者会上表示，驾驶一辆皮卡冲撞曼哈顿下城(Lower Manhattan)一条自行车道上的行人和骑车者的恐袭嫌疑人赛义夫洛•赛波夫(Sayfullo Saipov)，此前从未受到联邦调查局(FBI)或纽约警察局情报单位调查。

“But it appears he will have some connectivity to individuals who were the subject of investigations,” he said. The attack, which police described as an isolated incident, killed eight people.

“但是看来他和一些受到调查的人有关联，”米勒说。被警方称为孤立事件的这起袭击，已经造成8人死亡。

Mr Miller said that investigators recovered notes handwritten in Arabic near the rental truck that Mr Saipov — who was shot by police and is in custody — is suspected of driving. “The gist of the notes was that the Islamic State would endure forever,” Mr Miller said.

米勒称，调查人员在赛波夫租下并驾驶的肇事卡车附近找回了一些用阿拉伯文手写的字条。“这些字条的大意是伊斯兰国永存，”米勒说。赛波夫最后在被警方开枪击中后被抓。

“He did this in the name of Isis,” he added.

“他是以ISIS的名义发动本次袭击的，”米勒补充道。

It was not clear when the 29-year-old Uzbek national, who had entered the country in 2010, was radicalised, Mr Miller said. He said that authorities were interviewing family members, friends and associates of Mr Saipov, but could not offer further details as they investigate the deadliest attack in New York since September 11 2001. President Donald Trump told reporters he would “certainly consider” sending Mr Saipov to Guantánamo Bay.

米勒表示，这名29岁的乌兹别克斯坦男子是2010年来到美国的，尚不清楚他是何时被激进化的。米勒称，当局正在对赛波夫的家人、朋友与同事问话，但还无法提供进一步细节。目前他们正在调查自2001年9月11日以来纽约遭遇的最致命袭击。美国总统唐纳德•特朗普(Donald Trump)对记者说，他“当然会考虑”将赛波夫送到关塔那摩湾(Guantánamo Bay)军事监狱。