How to remove sprite in cocos2d?

In cocos2d I created SPRITE but after click on menu Button I want to remove sprite. this is sprite code..

// create and initialize our seeker sprite, and add it to this layer
seeker1 = [CCSprite spriteWithFile: @"button_Red.png"];
seeker1.position = ccp( 50, 150 );
[self addChild:seeker1];

And also I create menu.

    CCMenuItemImage * menuItem1 = [CCMenuItemImage itemFromNormalImage:@"1.gif"
                                                         selectedImage: @"2.gif"
                                                                target:self
                                                              selector:@selector(doSomethingOne:)];

And This is remove code so what I done wrong in Remove.

- (void) doSomethingOne: (CCMenuItem  *) menuItem 
{
 NSLog(@"The first menu was called");
[self.children removeObject:s开发者_运维知识库eeker1];// removeSpriteFrames:seeker1 removeChild:seeker1 cleanup:YES];
}

Please give me code for how to remove sprite.

Try

[seeker1 removeFromParentAndCleanup:YES];

Instead of
[self.children removeObject:seeker1];

use
[self removeChild:seeker1 cleanup:YES];

As you are adding child to self, then how can you remove it from self.children