RAII in Objective-C pattern?

Question

I find myself writing code like this to achieve exception safe code:

Container* container = [Container new];
@try {
    while(someCondition) {
        ElementType* value = [someObject createObjectFromStorage];
        [container add:value]; // container retains object
        [value release];
    }

    [_container release];
    _container = [container retain];
} @finally {
    [container release];
}

Is there some other, and more succinct pattern to follow in Objective-C?