(CNN) -- Law enforcement officers forcefully but safely ended a two-day hostage situation at a suburban Chicago house Wednesday morning, rescuing two children and two women while taking two suspects into custody in a raid on the home, authorities said.

The move -- made after four other hostages were released the previous night -- finished a roughly 20-hour standoff that police say began with a robbery attempt at the home in Harvey, Illinois.

The hostage-takers shot and injured at least one police officer when the standoff began Tuesday, but no shots were fired and no one was hurt when police moved into the home Wednesday, having determined negotiations were no longer progressing and that tensions were rising.

 

Police: Robbery suspects holding hostages

"We're very happy that there's been a peaceful resolution," Cook County Sheriff Tom Dart told reporters.

The four rescued hostages, including a 6-year-old child and a 12-year-old girl, were "traumatized" but unharmed, Dart said.

Police knocked down a first-floor door and rushed up to the second floor, where they found the hostages and the suspects. Authorities decided to move after round-the-clock negotiations "were getting a little bit more on the dicier side," Dart said.

"It was the (proper) time to act," Dart said.

Started with robbery attempt

The incident began at about 12:45 p.m. Tuesday when two people tried to rob the home, Dart said.

Inside the home when the suspects arrived were four children from one immediate family, plus two children who are related to them, and the two women, Dart said.

Police were called, and one responding officer was shot in the arm but is OK, Dart said. Another officer was injured and also is OK, Dart said, without elaborating.

Sometime afterward, law officers from all over Illinois surrounded the residence and began the negotiating process.

Four hostages -- children ranging in age from 1 to 12 -- were released Tuesday night and were not injured, police said.

Dart said the talks persisted for hours and proved to be a "very thoughtful approach" to hostage negotiations. Then, the back-and-forth stalemated and "the time had come for certain action," Dart said.

"At this juncture it was the prudent thing to do, which was to enter the house and to secure the hostages to make sure they weren't being harmed," Dart said.

Asked if police and the suspects were in a struggle, Dart answered: "They didn't surrender themselves."

There's no indication that the suspects had any connection to the hostages before Tuesday, Dart said.

Harvey Mayor Eric Kellogg had asked residents to stay inside their own homes as police, who blocked off nearby streets, dealt with the situation.

A city of about 25,000 people, Harvey is about 20 miles south of Chicago.

獲救伊利諾伊州的對峙其餘4名人質
由托尼·馬可和賈森·漢娜，美國有線電視新聞網
2014年8月20日 - 更新1816 GMT（0216 HKT）

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新聞提要
其餘4名人質獲救週三早上，將近一天的情況後，就開始
警察：2人員回應週二搶劫被槍殺在哈維，伊利諾伊州
犯罪嫌疑人採取了人質家中，警方增加
執法部門從各地匯聚伊利諾伊州的住所
（CNN） -執法人員強行但平安結束了在芝加哥郊區的房子週三上午進行為期兩天的人質事件，解救兩兒兩女同時採取兩名犯罪嫌疑人被羈押在家裡搜查當局說，。
這一舉動 - 後作出其他四個人質的前一天晚上公佈 - 完成的警方說，一開始的企圖行劫的家中哈維，伊利諾伊州大約20個小時的對峙。
劫持者開槍打傷至少有一名警察在對峙週二開始，但沒有人開槍，沒有人受傷，當警察搬進家裡週三，有確定的談判不再進展和緊張關係升高。
警方：搶劫嫌疑人挾持人質
“我們非常高興的是，還有的是一個和平解決，”庫克縣警長湯姆·達特告訴記者。
這四個救出人質，其中包括一個6歲的孩子和一個12歲的女孩，是“創傷”，但沒有受傷，達特說。
警察撞倒一樓的門，衝到二樓，在那裡他們發現了人質的犯罪嫌疑人。當局決定後​​二十四小時的談判，以動“是在dicier方獲得多一點點，”達特說。
“這是（正確的）行動的時候了，”達特說。
入門企圖行劫
這一事件開始於約下午12:45週二，當兩個人試圖搶劫的家，達特說。
內部時，到達嫌疑人從一個直系家庭四個孩子，再加上誰是與他們的兩個孩子，和兩個女人的家裡，達特說。
警察被召來，一個回應官員被射中手臂，但就OK，飛鏢說。另一名警員受傷，也還算可以，達特說，沒有詳細說明。
一段時間之後，來自全國各地的伊利諾伊州執法人員包圍了官邸，並開始了談判進程。
四名人質 - 孩子年齡從1到12 - 被釋放星期二晚上，並沒有受傷，警方說。
達特說，會談持續了幾個小時，被證明是一個“非常周到辦法”人質談判。然後，後面的往復僵持和“的時機已經到來了一定的作用，”達特說。
“在這個時刻這是審慎的做法，這是進入房子，並確保人質，以確保他們沒有受到傷害，”達特說。
當被問及警方和犯罪嫌疑人在奮鬥，飛鏢回答說：“他們沒有放棄自己。”
沒有跡象表明，犯罪嫌疑人曾在星期二以前人質的任何連接，達特說。
哈維市長埃里克·凱洛格曾要求居民留在室內自己的房子，警察，誰封鎖了附近的街道，處理的情況。
一個城市的約25000人，哈維是芝加哥以南約20英里。