This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

On 28 April 2015, the Iranian navy seized the Marshall Island-flagged MV Maersk Tigris near the Strait of Hormuz. The ship had been chartered by Germany's Rickmers Ship Management, which stated that the ship contained no special cargo and no military weapons. The ship was reported to be under the control of the Iranian Revolutionary Guard according to the Pentagon. Tensions escallated in the region due to the intensifying of Saudi-led coalition attacks in Yemen. The Pentagon reported that the destroyer USS Farragut and a maritime reconnaissance aircraft were dispatched upon receiving a distress call from the ship Tigris and it was also reported that all 34 crew members were detained. US defense officials have said that they would review U.S. defense obligations to the Government of the Marshall Islands in the wake of recent events and also condemned the shots fired at the bridge as "inappropriate". It was reported in May 2015 that Tehran would release the ship after it paid a penalty.
On what date did the Iranian Navy capture a Marshall Islands ship?