diff --git a/src/issue/Comment.php b/src/issue/Comment.php
new file mode 100644
index 00000000..ed5b0e20
--- /dev/null
+++ b/src/issue/Comment.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace JiraRestApi\Issue;
+
+class Visibility {
+	public $type;
+	public $value;
+}
+
+class Comment implements \JsonSerializable {
+	/* @var string */
+	public $self;
+
+	/* @var string */
+	public $id;
+
+	/* @var Reporter */
+	public $author;
+
+	/* @var string */
+	public $body;
+
+	/* @var Reporter */
+	public $updateAuthor;
+
+	/* @var DateTime */
+	public $created;
+
+	/* @var DateTime */
+	public $updated;
+
+	/* @var Visibility */
+	public $visibility;
+
+	public function setBody($body) {
+		$this->body = $body;
+       	return $this;
+    }
+
+    public function setVisibility($type, $value) {
+    	if (is_null($this->visibility))
+    		$this->visibility = array();
+
+		$this->visibility['type'] = $type;
+		$this->visibility['value'] = $value;
+       	return $this;
+    }
+ 
+	public function jsonSerialize()
+   {
+      return array_filter(get_object_vars($this));
+   }
+}
+
+?>
\ No newline at end of file
diff --git a/src/issue/Comments.php b/src/issue/Comments.php
index fa01cc88..2b3106ab 100644
--- a/src/issue/Comments.php
+++ b/src/issue/Comments.php
@@ -2,34 +2,6 @@
 
 namespace JiraRestApi\Issue;
 
-class Comment implements \JsonSerializable {
-	/* @var string */
-	public $self;
-
-	/* @var string */
-	public $id;
-
-	/* @var Reporter */
-	public $author;
-
-	/* @var string */
-	public $body;
-
-	/* @var Reporter */
-	public $updateAuthor;
-
-	/* @var DateTime */
-	public $created;
-
-	/* @var DateTime */
-	public $updated;
-
-	public function jsonSerialize()
-   {
-      return array_filter(get_object_vars($this));
-   }
-}
-
 class Comments implements \JsonSerializable {	
 	/* @var int */
     public $startAt;
diff --git a/src/issue/IssueService.php b/src/issue/IssueService.php
index 97794fde..40bb35d4 100644
--- a/src/issue/IssueService.php
+++ b/src/issue/IssueService.php
@@ -97,6 +97,29 @@ public function update($issueIdOrKey, $issueField) {
 
         return $ret;
     }
+
+    /**
+     * Adds a new comment to an issue.
+     * 
+     * @param issueIdOrKey Issue id or key
+     * @param comment .
+     * 
+     * @return Comment class
+     */
+    public function addComment($issueIdOrKey, $comment) {
+       
+        $this->log->addInfo("addComment=\n");
+
+        $data = json_encode($comment);
+        
+        $ret = $this->exec($this->uri . "/$issueIdOrKey/comment", $data);
+
+        $comment = $this->json_mapper->mapArray(
+           json_decode($ret), new \ArrayObject(), '\JiraRestApi\Issue\Comment'
+        );
+
+        return $comment;
+    }
 }
 
 ?>
diff --git a/tests/IssueTest.php b/tests/IssueTest.php
index 3cfa16f9..0e190cdd 100644
--- a/tests/IssueTest.php
+++ b/tests/IssueTest.php
@@ -2,6 +2,7 @@
 
 use JiraRestApi\Issue\IssueService;
 use JiraRestApi\Issue\IssueField;
+use JiraRestApi\Issue\Comment;
 
 class IssueTest extends PHPUnit_Framework_TestCase 
 {
@@ -79,14 +80,12 @@ public function testAddAttachment($issueKey)
 	}
 
 	/**
-     * depends testAddAttachment
+     * @depends testAddAttachment
      * 
      */
-	public function testUpdateIssue()
+	public function testUpdateIssue($issueKey)
     {
-    	$issueKey = "TEST-920";
-
-    	//$this->markTestIncomplete();
+    	$this->markTestIncomplete();
 		try {			
 			$issueField = new IssueField(true);
 
@@ -103,11 +102,42 @@ public function testUpdateIssue()
 			$issueService = new IssueService();
 
 			$issueService->update($issueKey, $issueField);
+
+			return $issueKey;
 		} catch (JIRAException $e) {
 			$this->assertTrue(FALSE, "update Failed : " . $e->getMessage());
 		}
 	}
 
+	/**
+     * Depends testUpdateIssue
+     * 
+     */
+	public function testAddcommnet()
+    {
+    	$issueKey = "TEST-924";
+    	//$this->markTestIncomplete();
+		try {			
+			$comment = new Comment();
+
+			$body = <<<COMMENT
+Adds a new comment to an issue.
+* Bullet 1
+* Bullet 2
+** sub Bullet 1
+** sub Bullet 2
+COMMENT;
+			$comment->setBody($body)
+				->setVisibility('role', 'Users');
+			;
+
+			$issueService = new IssueService();
+			$ret = $issueService->addComment($issueKey, $comment);
+			print_r($ret);
+		} catch (JIRAException $e) {
+			$this->assertTrue(FALSE, "add Comment Failed : " . $e->getMessage());
+		}
+	}
 }
 
 ?>