The unnamed sources inform the AP and Reuters news agencies.
The rockets were used for the first time in the morning hours of April 17 against a Russian airbase on the Crimean peninsula, 165 kilometers away, it said.
The ATACMS missiles were part of a $300 million aid package that President Joe Biden approved on March 12, the sources said.
Great range
They do not say how many rockets this shipment included – other than that the number was “significant”. This type of rocket doubles the range to 300 kilometers compared to the rockets that Ukraine received from the United States in October last year.
The military aid package that President Biden signed on Wednesday includes several missiles of this type.
The US hesitated for many months to send long-range missiles to Ukraine. This was based on uncertainty about whether they would be used to hit targets deep inside Russian territory and thus contribute to an escalation of the war. This was the reason why in October the US sent medium-range missiles with a range of “only” up to 160 kilometers.
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Risk
The sources say that the White House and military strategists have carefully considered the risks of supplying Ukraine with these missiles and decided that it is appropriate to send such equipment at this time.
Admiral Christopher Grady, deputy chairman of the defense staff, recently said in an interview with the AP that long-range weapons will help Ukraine knock out logistics centers and troop concentrations located some distance behind the front.
Grady would not specify which weapons he was talking about, but he added that such weapons would be very destructive if used properly.
