I want to load a URL in `UIWebView` using the value of `UITextField` in the URL query:

```
let texts = SearchBox.text!
let searchurl = "http://sngpoisk.ru/search-location/?search_keywords=\(texts)&search_location=&place_location=&latitude=&longitude="
let urls = NSURL(string:searchurl)
let ret = NSURLRequest(URL:urls!)
Browser!.loadRequest(ret)

```

But when `texts` contains Russian characters, an error occurs:

> 
> EXC\_BAD\_INSTRUCTION (code=EXC\_1386\_INVOP , subcode=0x0) 
> 
> 
>