US-based insurer The Chubb Corporation has reported a net income of $404m, or $1.48 per share, for the second quarter of 2012, compared to $419m, or $1.42 per share, for the same period in 2011.

The impact of catastrophes in the second quarter of 2012 was $223m, compared to $329m for the same period prior year.

Net written premiums for the quarter increased 1% to $3.1bn, compared to $3.05bn for the same period a year ago.

Property and casualty investment income after taxes for the quarter declined 5% to $303m, compared to $318m for the same period last year.

Operating income, excluding after-tax realized investment gains and losses, was $374m for the second quarter of 2012.

Chubb chairman, president and CEO John Finnegan said, "Although catastrophe losses had an adverse impact of $0.53 per share, we still generated operating income of $1.37 per share and net income of $1.48 per share."