TULSA — U.S. Rep. John Sullivan called his Tulsa congressional district a haven for illegal immigrants Thursday and renewed calls for police to work more closely with federal immigration officials.


Sullivan said the immigration problem in Tulsa appears to be worse than he once thought. He spent Wednesday night touring areas where police said large numbers of illegal immigrants live. Sullivan rode with Tulsa police Wednesday to learn more about the type of crimes police deal with every day among the illegal immigrant population.

"The city is crying out to enforce immigration laws,â€